HELLO TO YOU ALL i used something less complicated and it's cheaper. If you can think back to when Logiitech came out with the PLAY LINK wireless connection. It used to cost 100 bucks, well it's only like 17 bucks on ebay. I've purchased it and my friends have as well. You have 2 boxes that send the signal to each other and works as a wired network. YOu plug one box to your router, and the other box to the 360. works up to 100ft. No lag, no connection issues everything you need is in the box, i'll post a link for the logitech page and also the items found on ebay. I'm using the linksys router WRT54GL . So there you go, for those of you who must have wireless like myself.
gamer tag: DJ LO BUGIT(XBOX LIVE)