You had me at "Put Yourself in Star Wars".
The folks at JibJab have teamed up with the Star Wars people (you know, Lucasfilm) to offer a Web app that lets you star in the Star Wars films. Just upload a photo of your face, do some quick tweaks and voila! You're in the movie. You can then embed the video as I've done here, or you can share your masterpiece with friends via Facebook or Twitter.
I gotta admit, it's a little creepy seeing me as Princess Leia, but I think I do make a bad-ass Lando.