High density WLAN scenario

Hello,
Next week I'm facing a high density WLAN scenario, so I'm gathering info related to WLAN config advices, expected issues, etc. I've read Cisco WLAN High Density WLAN guide, but I'm still having questions about how my WLAN network will react to a high density scenario, i. e. auditorium with 800 seats. I'm planning 4-5 APs, maybe one in each corner and one in the middle.
My gear is Cisco WLC 5508 v7.4.100 with a mixture of 3600, 2600 and 1142 APs. I'm a bit doubtful about certain issues, related to high number of devices (specially iPhones and Android phones) trying to get connected to WLAN network. Regarding radio frequency planning, allow only high modulation levels, is there any other config I can set in order to force wireless clients to stop trying to associate to a certain AP? Is client-balancing setting working well with iPhone and Android phones?
My other concerns are about what info and graphics should I watch in real-time in Cisco Prime. Certanly, number of clients per Ap, but, anything else?If I get AP saturation, how should I react? Moving or adding APs? Rising modulation level?
Any advice will be greatly appreciated.
Kind regards,
Libera TAC team.

I disable 1,2,5.5,6,9 and 11 Mbps, 2 to 54 are supported, TPCv1 is enable, but I´m using fixed power because the WLC assigned low power and clients get low signal. Now I´m testing an area using 1-24 Mbps as disable and 36, 48 Mbps as supported and 54 Mbps as mandatory, do you think that with this set up will we be able to manage high power level?
Here, we have serveral clients into small areas, so we have lot of APs for the amount of clients.
(Cisco Controller) >show advanced 802.11b txpower
Leader Automatic Transmit Power Assignment
  Transmit Power Assignment Mode................. AUTO
  Transmit Power Update Interval................. 600 seconds
  Transmit Power Threshold....................... -65 dBm
  Transmit Power Neighbor Count.................. 3 APs
  Min Transmit Power............................. -10 dBm
  Max Transmit Power............................. 30 dBm
  Transmit Power Update Contribution............. SNI..
  Transmit Power Assignment Leader............... WLC.MARTI.CORPO (172.17.250.50)
  Last Run....................................... 102 seconds ago
  TPC Mode....................................... Version 1
  TPCv2 Target RSSI.............................. -67 dBm
  TPCv2 VoWLAN Guide RSSI........................ -67.0 dBm
  TPCv2 SOP...................................... -85.0 dBm
  TPCv2 Default Client Ant Gain..................   0.0 dBi
  TPCv2 Path Loss Decay Factor...................   3.6
  TPCv2 Search Intensity......................... 10 Iterations
AP Name                          Channel    TxPower       Allowed Power Levels   
--More-- or (q)uit
AP.CORPO.P11.OESTE                6          3/8 (17 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P11.NORTE               *1         *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P11.SUR                 *1         *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P10.NORESTE              11         6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.NORESTE               1          7/7 ( 4 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P8.SURESTE               11         6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P7.NORTE                *1         *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P10.SURESTE              6          6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P10.SUROESTE             11         5/8 (11 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.SUROESTE              1          5/7 (10 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P6.NORESTE               6          6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P7.OESTE                 11         6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.NOROESTE              11         5/8 (11 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P6.NOROESTE              1          5/7 (10 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P6.SURESTE               1          6/7 ( 7 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P6.SUROESTE              6          5/8 (11 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P12.SUROESTE             1          4/7 (13 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P12.NOROESTE             11         4/8 (14 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P12.SURESTE              11         6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.TERRAZA.SUR              6          6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P7.SUR                  *1         *7/7 ( 4 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P9.NORTE                *6         *7/7 ( 4 dBm) [22/19/16/13/10/7/4/4]
--More-- or (q)uit
AP.CORPO.P9.SUR                  *1         *6/8 ( 8 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P9.OESTE                 1          6/7 ( 7 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P12.NORESTE              1          6/7 ( 7 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.TERRAZA.NORTE           *11        *1/8 (23 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P1.NORTE                 11        *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P1.SUR                   1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
AP.CORPO.P10.NOROESTE             6          5/8 (11 dBm) [23/20/17/14/11/8/5/2]
(Cisco Controller) >show advanced 802.11a txpower
Leader Automatic Transmit Power Assignment
  Transmit Power Assignment Mode................. AUTO
  Transmit Power Update Interval................. 600 seconds
  Transmit Power Threshold....................... -70 dBm
  Transmit Power Neighbor Count.................. 3 APs
  Min Transmit Power............................. -10 dBm
  Max Transmit Power............................. 30 dBm
  Transmit Power Update Contribution............. SNI..
  Transmit Power Assignment Leader............... WLC.MARTI.CORPO (172.17.250.50)
  Last Run....................................... 223 seconds ago
  TPC Mode....................................... Version 1
  TPCv2 Target RSSI.............................. -67 dBm
  TPCv2 VoWLAN Guide RSSI........................ -67.0 dBm
  TPCv2 SOP...................................... -85.0 dBm
  TPCv2 Default Client Ant Gain..................   0.0 dBi
  TPCv2 Path Loss Decay Factor...................   3.6
  TPCv2 Search Intensity......................... 10 Iterations
AP Name                          Channel    TxPower       Allowed Power Levels   
--More-- or (q)uit
AP.CORPO.P11.OESTE               *40        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P11.NORTE               *36        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P11.SUR                 *40        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P10.NORESTE             *153       *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.NORESTE              *161       *3/8 (17 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.SURESTE              *40        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P7.NORTE                *48        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P10.SURESTE             *36        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P10.SUROESTE            *149       *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.SUROESTE             *36        *2/5 (11 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P6.NORESTE              *153       *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P7.OESTE                *149       *3/8 (17 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P8.NOROESTE             *48        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P6.NOROESTE             *161       *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P6.SURESTE              *36        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P6.SUROESTE             *40        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P12.SUROESTE            *36        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P12.NOROESTE            *48        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P12.SURESTE             *161       *3/8 (17 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.TERRAZA.SUR             *157       *1/8 (23 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P7.SUR                  *157       *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P9.NORTE                *40        *2/5 (11 dBm) [14/11/8/5/2/2/2/2]
--More-- or (q)uit
AP.CORPO.P9.SUR                  *161       *4/8 (14 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P9.OESTE                *153       *2/8 (20 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P12.NORESTE             *36        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.TERRAZA.NORTE           *44        *1/8 (23 dBm) [23/20/17/14/11/8/5/2]
AP.CORPO.P1.NORTE                *44        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P1.SUR                  *64        *1/5 (14 dBm) [14/11/8/5/2/2/2/2]
AP.CORPO.P10.NOROESTE            *161       *1/8 (23 dBm) [23/20/17/14/11/8/5/2]

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