Looks like a great free tool from Microsoft; Photo Story 3 for Windows
It creates a WMV video slideshow from your pictures with special effects, titles, captions, soundtracks and voice narration. A lot more interesting than a basic slideshow.
I say looks like as it doesn't install on Win2k3 since it requires a "Genuine Windows Validation". My parents will have to survive with a normal jpeg slideshow of the grandchildren this year as well.
Via [Larry Ostermann's WebLog]