screen capture

Can anyone suggest a Mac screen capture utility for creating presentations. Captivate and Camtasia are PC only and I was wondering what people were using on the Mac side.
Tom Haymes, Houston Community College Northwest

Matt Frank
I have used Snapz Pro and Screenflow. For simple things I would say that Snapz works better, but Screenflow has a built in editor which can save a lot of time if you have to edit your presentation video.