first off, ozy, I'm glad that you are getting good results. I'm sure that when you are connected wirelessly, your speeds are similar. I have dealt with xbox live using linksys wireless for xbox, MS wireless for xbox and wired ethernet. There is a difference. The deal with wireless is that the signal isn't constant, in a matter of speaking. Better put, a wired connection is more constant than a wireless one. Wireless drops more packets consistently more often than wired. Xbox live checks for line speed, which will show up as great on wireless, but in reality, the experience on live will be different. If you have a fast connection from your isp, you may get picked as host and not notice. Or if you have been gaming wirelessly all along, you won't realize what you're missing. A higher percentage of my games over wired go well for me. Much less lag and missed shots. I checked my stats on halo2 and could see a distinct difference in my performance in wireless vs wired. Anyway, just be aware that latency and down/up speed are not the only factors that affect the gaming experience. The best solution is to put your modem and or router/gateway next to your xbox and wire it. It will be cheaper to get wireless for desktops than for the xbox and computers will be less affected by wireless.