Also to answer your question about Media Center. Its pretty much the same as Windows XP, but its based around having the ability to do much more with media work. Video editing, TV tuning, music, movies, ect.
A little more indept info on it, is that it was originaly called "Freestyle" before it was given its public release name. As its stated around the net, you cannot buy MC edition of Windows. It comes standard with MC editing PC's.
"Media Center Edition provides television viewing and recording capabilities, DVD playback, and DVD recording (DVD recording lets you play back your recordings on only the machine you used to make the recording). A remote control is also supplied to provide full control over the simplified interface."
A few info links as well:http://www.microsoft.com/windowsxp/m...r/default.mspxhttp://www.windowsitpro.com/Articles...rticleID=26653http://www.dvdfile.com/news/special_...ooclose/1.htmlhttp://dvr.about.com/od/mediacenterpcs/f/MCPCFAQ.htm