Remember the guy who did the Christmas house? I think this may be the same guy. My son showed me this last night and I had to share. If it's a repost, my bad. http://www.i-am-bored.com/bored_link.cfm?link_id=53911
That's pretty cool. If you look at his other vids, it looks like he's set it up to work with a bunch of different tunes.
that's awesome! I've always to start getting into this kind of stuff - expensive but the accomplishment seems worth it to me.