I don't know if this has been shown around a lot or not, so if you have already seen it, I apologize, but I just think this video is so awesome I thought I would post it in case someone hasn't seen it yet. You have to watch it all the way through!
http://www.youtube.com/watch?v=LU8DDYz68kM
http://www.youtube.com/watch?v=LU8DDYz68kM