I made these for a promotion a few months ago and if you have a membership site or just people interested in wordpress they are pretty good.
You can download the full Camtasia files to stream from your own site.
Advanced Wordpress Video Tutorials
If your interested go to the bottom of the page and click Quentin in the footer and get the full resale rights for just $25 as a special offer to this forum.
Here is a sample of one of the vidoes.
Created by Camtasia Studio 4
Quentin