The X3 is the best chip by far.
http://www.team-xecuter.com/

I have the X23B pro chip. It was the best 3 or so years ago.

I never tried Linux but I do have all my games on a hard drive along with various othe console games.
I also use it to stream music and movies from my PC
http://sourceforge.net/projects/xbmc

http://dvd2xbox.xbox-scene.com/

Danny

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