I just bought the XBO wireless adapter and it rocks! It is a little pricy but it works extreamly well set up is a breaze and it suppors 128bit WEP encryption. It is also the cheapest 802.11g network bridge you can get I get a FULL 54mbs out of it and now i no lonager have to unhook my cable modem bring it down staris hook it back up wait for all the little lights to light up and then play my online games (MOST UNREAL CHAMPIONSHIP). Now i can just play. Works wonderfully here is link for more info.
http://www.microsoft.com/hardware/br...s.aspx?pid=015 
BTW i got it for $99 at circuitcity they also had teh linksys for $79 with $10 rebate but It was only 802.11b and i have a g router though I might as well take advantage of it.
XBOX Wireless! 
Linear Mode
