I'd avoid anything with the tag "gaming" in it. They don't do anything different except maybe they'll automatically open the ports for your console. That's a process that takes a minute to do anyway.
I personally use a Belkin Wireless N router that I got 2 years ago. Still works just as well now as it did then. I hear Netgear and Linksys are pretty good, better than Belkin. I'd just look online. You'll always fine one for cheaper on some website of course. But if you're in dire need of one now, then I know the prices on Wireless N routers have dropped since I got one.
Whenever you do get one and if you need assistance then go to this site:
PortForward.com
It gives you step-by-step instructions on how to open ports or set-up your computer, console, whatever in DMZ mode for every router.