On: Is there a good free tool on the mac for capturing video from the screen?

[martey]

From your link, it seems Screenflow costs $99; the request was for a free application.

[zain → martey]

Sorry -- I missed that.

In that case, the program you're looking for is Jing: http://www.jingproject.com/

However, if you're distributing your screencast to the web (or even more than just one or two techies), Screenflow is worth every penny.