Although it'd be silly in my setup (my Nintendo Wii sits vertically next to my HTPC(s)), if you were one of the lucky folks to snag a Nintendo Wii here's an article about using Orb and the Wii Opera Browser to stream audio/video to make your Wii behave like a media center. No word yet if there's a way to gesture angrily with the wiimote to fast forward through commercials :P