Optimal configuration for Cisco E3000 Router

Hi All,
Following are the details of my current home network setup, I would like to hear more recommendations and drawbacks of this setup.
ISP has provided with a Cisco  DPC3825 DOCSIS 3.0 Gateway which has 4 Ethernet ports and a wireless networking but only 2.4 GHz.. This router is connected to the cable CPE box to internet. I have enabled the Firewall features of this router and disabled the Wireless network. This has also the DHCP server running. 
The Second router is a Cisco E3000 which supports 2.4 GHz / GHz wireless networking. Connection to gateway is made via the 1st Ethernet port of gateway and then to the Internet port of E3000 router. I have connected my wireless devices to E3000 with GHz wifi lan. This router also has the firewall activated and DHCP server running as well.
Both routers have WEP2 Personal / AES security configured. Currently these two devices are on two different IP ranges ..etc gateway is 192.168.0.1 and e3000 is 192.168.1.1.
The E3000 is primarily configured for my online video for TV (Panasonic Vireacast). Please let me know if this is the best configuration or any other possible options.
Thanks,
RG

This configuration is called LAN to WAN configuration and this is the best configuration considering that you want to behave both the router as a router.
Because the other confiuration would be LAN to LAN then you can only use 1 router as a router and 2nd router as a switch.
http://www6.nohold.net/Cisco2/ukp.aspx?vw=1&docid=529c188bc0ee4f7da79ffc22f2be33ec_4579.xml&pid=80&r...
The first configuration in the article is is LAN to LAN, scroll down the window for LAN to WAN configuration.

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