I've made a couple in the past year. I used Microsoft Photo Story. It's free software that you can get from Microsoft.com. It's very easy to use and gives enough options if you play with transitions. I think both of the shows were a little over 100 photos and about 10 minutes. I think they were slightly long but the Bride and Groom were happy with them. I cut the music out from MP3's and used about 45-90 second clips that would go with the appropriate pictures. I think the changing music helped keep people's attention.