You just hook it up to the Internet in your house, and then turn on Media Sharing on your comp. Then in the Xbox, you click on Videos and your computer shows up and you can play that shit through the Xbox. It plays DivX and all that crap now. It didn't use to do it until a few months ago when they came out with an update. So it's tremendous now.
http://www.xbox.com/en-us/support/sy...almedia/pc.htm