I’m not sure if this has been posted, but I just got this hooked up and am loving it, and thought I’d mention it. If you have your 360 networked with your comp you can d/l PlayOn http://www.themediamall.com/playon/ or TVersity http://tversity.com/ (I couldn’t get Hulu to work with TVersity) and watch Hulu movies on your 360 (PS3 has this as well). It’s a media center so it will let you play pretty much anything (youtube, audio files, etc.)
Also, the Bittorrent client Vuze works w/ your 360 as well, and will even convert the torrent files to a compatible file that will work with your 360.
Once again this is probably old news for most of you but I thought it was pretty cool.