I was having difficulty connecting to games both on the Xbox 360 and with my PC, but ever since I switched to the DGL 4500 and 4300, it’s been working extremely well.

I bought them at CircuitCity.com – respectively for $179 and $114.

Note that I had to upgrade the firmware on the DGL 4500 from 1.00 to 1.02 to solve an intermittent router reboot problem, so if you are not technically inclined, don’t need 802.11n or a very long range, you are probably better off with the 4300.