Having a photobooth was one of the best decisions we made for the wedding. We hired the photoboof, who we’ve seen around at various SF events like the laughing squid party. They have a few models, including one that’s built onto a meter maid buggy and goes to Burning Man.
Anyway, the photoboof was awesome. They can project the images in realtime, print duplicate copies, and give you a CD with all the images on it. Here are a few strips, with many more in my wedding photobooth set on Flickr.