XBMC Live

"XBMC Live is the XBMC Media Center software bundled with an embedded operating-system, all pre-packaged for that set-top-box feeling. XBMC Live also lets you easily boot to the XBMC Live CD in order to demo XBMC Media Center for your friends and family on practically any relatively modern computer, (as long as it was manufactured in the last 5-years or so it should meet the XBMC's minimum requirements)."

http://wiki.xbmc.org/?title=XBMC_Live
http://sourceforge.net/projects/xbmc/files/XBMC%20Live/Camel...