Adobe's Russell Brown has produced a great new collection of FREE workflow scripts for Photoshop CS3 & CS3 Extended. Be sure to check out Dr. Brown's Services 1.9.2 which offer some great features for video.
"Background Remover," "Interpret Video," "Fit Video to Audio," and "Slide Show" scripts take advantage of Photoshop CS3 Extended's new video capabilities.
If you want to save time, download Dr. Brown's Services 1.9.2