There is no point in getting a wireless N router if you don't need to transfer huge files between computers. Also, you won't get faster internet access with a wireless N router than a wireless G router .
I tested 2 wireless G routers - Belkin F5D7234ak4 ver 1001ak and D-Link DIR-300 ver 1.04. Both routers cost $39 with lifetime warranty.
I recommend the Belkin F5D7234ak4 because D-Link DIR-300 failed the stealth tests with ports 0 & 672 being closed not stealth whereas Belkin F5D7234ak4 passed all tests. It has all the important features and good to have features as well Wi-Fi b/g certified with WPA2.