My Linksys router crapped out on me a while back, so I bought a D-Link Xtreme N Gaming Router and I love it !!
http://www.amazon.com/D-Link-DGL-450...30138&sr =8-1 It's $156.98 at Amazon.com
It's a wonderful router especially if you have a house like mine where I'm on the main pc, the wife is on the laptop and my 3 kids are all playing COD on their Xbox 360s at the same time, no lag at all.