I found a link to Animoto.com through an art teacher's del.icio.us tags. It is a fun site for animating your photos. I love PhotoStory, but this is just a bit fancier. Now sure, PhotoStory is provided for me for free by my school system, and is sure to be my default photo animation tool, but I can see myself paying to use Animoto once in a while.
Here's a short animation of some of my fairy snips. Animoto lets you do a 30 second animation for free. They even let you choose to use their music or upload your own.