Mac Os 10.6.6 update start the fans goes crazy

Hi to all
Some months ago (almost a year from now) my mac start to become hot after only a few minutes it started up and the fan goes crazy but I never realize why. I made some search on the internet but the only answer I found was using some software to reduce fan speed. It didn't work. I run the Hardware test but nothing strange. I also took my macbook to an apple certified repair center but they told me that nothing was wrong. I also ask to another repair center but same thing. So I left my macbook as it was with this super fan noise all the time. A quite disturbing thing but there was no solution and for what I'm doing my machine is ok so why change it? (It was the only solution they gave me)
Last day my hd broke down so I had to replace it. I took my macbook pro a1211 model to an apple repair center they change the hd with a new one.
So I reinstall everything for the beginning. I took my snow leopard dvd formatted the new hd, installed the os, iWork 2008, iLife 2008, Mamp, CSS Edit, Espresso, Pixelmator and few other application such as Firefox, Camino, Etc...
I use the macbook with mac os 10.6, because I had to finish some work, and with my big surprise for two days the machine was super silent no fans, no hot body ..... nothing. I never reboot it and still no fans and hot body wow.
Today I wanted to install the developer kit with ios 4.2 and so I had to update the Mac os x to version 10.6.6 as soon as I made the update after the reboot the fans start again to go like crazy and after 15 minutes of work the macbook body become very hot.
The question is why?
Anyone can help me?
Thanks in advance
Gianfranco

HI R C-R.
The apps i've installed are just a few. Espresso, CSS Edit, MAMP, TextWrangler,Firefox, Camino, Chrome, Opera,BetterZip, Stuffit Expander, Pixelmator, 1Password, Dropbox, Xslimmer, VLC, CyberDuck, littlesnitch, iworks, iLife, wacom tablet driver.
Nothing more. All the software is updated.
Here the data but as you can see nothing strange but fans are on at the maximum speed!
PIDProcess Name % CPU Threads Real Mem Kind Sudden Term.
## Firefox 2,1 15 106,3 MB Intel
## Activity Monitor 1,2 2 20,0 MB Intel (64 Yes
## activitymonitord 0,9 1 1,3 MB Intel (64 No
0 kernel_task 0,9 57 138,0 MB Intel
## Finder 0,3 9 36,1 MB Intel (64 Yes
81 WindowServer 0,2 5 53,4 MB Intel (64 No
## Dock 0,1 3 15,5 MB Intel (64 No
## Little Snitch Network Mo 0,1 4 4,4 MB Intel No
14 configd 0,1 7 3,3 MB Intel (64 Yes
1 launchd 0 3 1,1 MB Intel (64 bit)
## SystemUIServer 0 3 19,5 MB Intel (64 Yes
## Apple80211Agent 0 3 9,5 MB Intel (64 No
## Safari 0 12 236,2 MB Intel (64 No
16 distnoted 0 3 1,3 MB Intel (64 Yes
11 DirectoryService 0 6 4,7 MB Intel (64 No
## launchd 0 2 1.000 KB Intel (64 No
13 diskarbitrationd 0 3 1,4 MB Intel (64 No
44 mds 0 5 31,4 MB Intel (64 No
17 blued 0 3 4,7 MB Intel (64 Yes
10 kextd 0 3 2,5 MB Intel (64 No
22 securityd 0 2 3,0 MB Intel (64 No
33 ntpd 0 1 1,1 MB Intel (64 Yes
34 cupsd 0 3 2,9 MB Intel (64 Yes
19 mDNSResponder 0 3 2,2 MB Intel (64 No
35 httpd 0 1 3,9 MB Intel (64 No
## UserEventAgent 0 3 5,6 MB Intel (64 Yes
62 coreservicesd 0 4 18,8 MB Intel (64 Yes
60 lsd 0 3 3,8 MB Intel No
## TextEdit 0 2 12,0 MB Intel (64 No
57 autofsd 0 2 940 KB Intel (64 Yes
## pboard 0 1 832 KB Intel (64 Yes
## fontd 0 2 6,4 MB Intel (64 Yes
51 dynamic_pager 0 1 788 KB Intel (64 Yes
49 fseventsd 0 13 1,9 MB Intel (64 No
48 hidd 0 2 948 KB Intel (64 Yes
46 KernelEventAgent 0 3 988 KB Intel (64 Yes
45 loginwindow 0 2 8,2 MB Intel (64 No
42 RFBRegisterMDNS 0 2 1,7 MB Intel (64 Yes
## mdworker 0 3 11,2 MB Intel (64 No
## TextWrangler 0 3 27,9 MB Intel No
38 usbmuxd 0 3 1,6 MB Intel (64 Yes
36 krb5kdc 0 2 1,9 MB Intel (64 Yes
## Preferenze di Sistema 0 2 25,7 MB Intel (64 Yes
97 coreaudiod 0 3 3,2 MB Intel (64 No
## WebKitPluginAgent 0 2 992 KB Intel (64 Yes
## mdworker 0 4 3,1 MB Intel (64 No
## TabletDriver 0 2 4,4 MB Intel (64 No
## ConsumerTouchDriver 0 2 5,5 MB Intel (64 No
84 cvmsServ 0 1 856 KB Intel (64 Yes
## iTunesHelper 0 3 2,8 MB Intel (64 Yes
83 httpd 0 1 620 KB Intel (64 bit)
## AppleSpell.service 0 2 7,0 MB Intel (64 Yes
15 syslogd 0 4 684 KB Intel (64 No
## 1PasswordAgent 0 2 9,3 MB Intel (64 No
12 notifyd 0 2 596 KB Intel (64 Yes
## Little Snitch UIAgent 0 3 5,9 MB Intel No
## Quick Look Helper 0 6 8,6 MB Intel (64 Yes
## PenTabletDriver 0 3 9,3 MB Intel (64 No
## Agente base AirPort 0 3 5,5 MB Intel (64 Yes
## AppleVNCServer 0 4 3,7 MB Intel (64 Yes

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