Camtasia Studio is one app that I will never be without. I use it to capture PowerPoint presentations during symposia and lectures, and it’s great for capturing online demos. The fact that it’s also a darn good video editing tool only cinches the deal. I use Camtasia Studio on a regular basis to create quick and dirty tutorials that teach people how to do things like make SSL-VPN connections. Because Camtasia can nicely combine other video sources and stills, it has become and indispensible part of my toolkit. The latest version even has the ability to insert a moving mosaic to blur out things like passwords or faces of people without model releases.
Compatibility: Mac OS X 10.6.3 or later