from personal experience, avoid wireless for games at all costs! i had the exact same setup, 360 getting connect thru crossover cable connected to laptop on the wireless network, and i just kept dropping all the time, the wireless was fine for browsing but just not for gaming, in the end, i purchased a massive phoneline extension, and the 360 is now plugged into the router direct. No more droppage! (yay 1st post etc too)