Posted 14 March 2013 - 02:06 PM
The other reason to use two routers is to provide local security. For example, use the primary router for "public" wireless and the secondary router for a secured wireless (obviously on different frequencies) with a firewall between them. Of course, the easier option is VLANs, but precious few home routers have that capability either.
The more I use it, the more impressed I am with the ASUS RT-N66U. It has multiple VLAN support, true DMZ, VPN host support, supports FTP, telnet, SSH, DLNA, iTunes, DDNS, can do BitTorrent (and other) downloads to a router attached USB drive with no PC attached, and has the best throughput and wireless range of any router I have seen. It's not cheap (in the $175 range) but it is the best home router I have ever used.
Dish Network Customer from 9/1998-11/2001
DirecTV Customer 10/2001 - 7/2014
FiOS TV/TiVo Customer since 6/2014
Moderator, DBSDish.com 1999-2000
Co-Founder and Administrator, DBSForums.com 2000-2006
HR34-700 (1TB) / HR24-100 (1TB) / HR24-500 (1TB) / HR21-700 (320GB) / HR21-100 (1TB) / 2 H25s / C41-500 / SWiM16 / Nomad / CCK
FiOS: 2 Tivo Roamio Pros (6 TB total) / 5 Tivo Minis attached via MOCA