How much you looking to spend? How big is your place that you need wireless coverage for?
Some routers are good for 1000 sq ft and others are good up to 10,000 sq ft.
You know that the gigabit is only going to help when with your computers talking to each other. I personally have a D-link Xtreme gaming router, you may not need this caliber of a router, but I've had it since 2008 and they keep having firmware for it. Never had a problem with it either.
I've also owned Belkin products with no problem.
I would stay away from netgear though. I've tried two in the past and they keep dropping the signal.