I thought I had posted this here, but I went back to look for the post and I couldn't find it...
A year and a half ago I started running my TV off a media center PC that I got at a steal from woot.com. Naturally, I had to run DWJukebox on it...

Not long after I put the PC in, one of my users, Hound Dog, submitted a beautiful widescreen skin that was just perfect. Here it is running on my TV...

I use LM Keymap to convert input from my remote control to keystrokes, so it can all be handled perfectly from the remote. It's quite popular when we have company over, such that the jukebox on the MAME cabinet is never used anymore.
Anyway, I don't know if it really qualifies as much of a "project", but I thought someone here might like it.
--Chris