In my lan party essentials blog I mentioned a router I turned into a wireless bridge. I chose this option because the xbox wifi adapter is $100 for each Xbox. For $20 you can turn an older router into a bridge and give 4 xboxes a wireless internet connection.
The first thing I did was buy an old router of craigslist (Ebay has good prices aswell). Now you need to make sure the router is flashable and compatible with dd-wrt in the
supported devices list. Mine is a Linksys wrt54g, probably the most popular router for this kind of project. (note:I used 2 browsers and when it didn't load right in the first browser I tried the second. switching back and forth worked good.)
Once I followed the directions to get it installed, I changed the settings to bridge to my wireless gateway. I followed these
instructions. Worked great for my AT&T U-verse.
For U-verse the gateway IP is 192.168.1.254, so use this in place of 192.168.1.1
