I created the following demo with Camtasia. I've really enjoyed the easy way it makes this quick, in fact, I put this together in less than an hour (from prep to captions) - I didn't know how to do captions right, so they may not be perfect - but I did pick up how to get them in in a short amount of time. Version 5 just rocks (I've got v4 and v3, but never really used them a whole lot)

http://www.expertcalendar.com/ExpertCalendar.html

Techsmith makes Camtasia (as well as snagit, a screen capture utility that I can't live without - in fact almost all of the screen captures on the site are from the snagit utility as well as those in the documentation for all of my commercial packages)