Digital etc: http://digitaletc.com/e2000-advanced-dual-band-wireless-n-route
has Linksys by Cisco E2000 Wifi N Router w/ 4-port built in gigabit switch
for $60 - $22 coupon E2000-22OFF = $38 with free shipping.
DD-WRT Information:
(wiki) Link: http://dd-wrt.com/wiki/index.php/Linksys_E2000
(forum and builds) Link: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=73601&postdays=0&p
Tomato firmware information
(forum) Link: http://tomatousb.org/forum/t-259602/
This router is very similar to Linksys WRT320N (or WRT32XN) (lots of
previous discussion here), however, this is an official E2000 model,
supported by Cisco as such if you don't want to tinker with DD-WRT
WAN port is also Gigabit, so if you have a really really really fast drop
which exceeds 100mbit bursts, you can use that (rare in home conditions,
usually tops off at ~50 Mbps)
It has 8MB flash memory and 32MB RAM, so it's compatible with MEGA DD-WRT
builds and can handle more connections than other routers simultaneously