The more important thing to look for is it has wireless N AND at least the 150Mbps, which any wireless N should have.
I have a Linksys E2000, which is an older model, that covers my whole house wirelessly and the router is in a closet in the basement even!! Got the router from BestBuy for about $70. My router does not have antennas, but works flawleslsy. Personally, I prefer the one's without antenna!
Cisco and Linksys are the same company, btw, although they do still label stuff seperately.
The Firefox alternative.