I currently have two Photoshop video tutorials posted on my Vimeo channel.

"Scratch Art" using Photoshop,
http://www.vimeo.com/7371909

Scratch Art: Photoshop for Kids of All Ages from Nicole Dalesio (magrelacanela) on Vimeo.

and a video art tutorial using colorful backgrounds with high contrast black and white images and video. The video art tutorial won honorable mention in the "So you think you can teach Photoshop" contest sponsored by NAPP.
http://vimeo.com/groups/teachphotoshop/videos/7347161

Video Art and Photoshop for Kids of All Ages from Nicole Dalesio (magrelacanela) on Vimeo.