This Mac vs PC spoof of Transformers --with a twist of Terminator, has been around for a while. There's actually a sequel in the works. It's extremely well made!

http://www.chiamotion.com/Projects/W...%20vs%20Pc.mov

If you're interested, here's the link to the trailer for the sequel:

http://www.chiamotion.com/Projects/W...P2_Trailer.mov


Props to Dan Schulz