Think Buffalo my friend, think Buffalo. This is the best wireless router on the market for the money and it can be hacked with DD-WRT firmware. I just setup an apartment complex's clubhouse using this router and it's excellent.
http://www.newegg.com/Product/Product.aspx?Item=N82E16833162173They're out of stock for this week but you can always find it elsewhere, I just trust Newegg.com completely that's why I used that link.
You also might want to think about upgrading to the new N technology which allows faster download speeds if money isn't a big issue. You'll need an adapter and a router that can handle the N technology and it's more expensive but the speeds are better.