I'm not one to regularly make video slide shows from images but it has it's uses now and again.
On my old XP PC I had MS Photostory 3 which served my purposes and it was a free. I checked if this was still available but it seems it may not work on W7-64 but Windows Movie Maker is available. It's part of the Windows Live set of programs that are free to download & use.
I installed this program at the weekend and made a few short slide show videos with sound. It's not quite as sophisticated as Photostory 3 but pretty good at making an quality show in a short time.
You can download here:
http://explore.live.com/windows-live-movie-maker?os=other
I thought this was worth sharing, it's not often you get something free from Microsoft 
Terry