If you make it an HTPC you can use it as a server for all your dvd's and videos. Plus you can put all your music on it and play it from your tv. Browsing the net from the tv is great. I turned my old boxing machine into an HTPC and love it.

http://www.dual-boxing.com/showthread.php?t=45299 Check it out. System specs are very similar to yours.