Hands down this is my favorite way of making a podcast. The ease with which I can capture the video on my Macintosh computer is astounding. Their are tons of options for post-production manipulation. You can add audio, strip audio, mix clips, fade in camera grabs (i.e. images of me talking) with with the screen I'm working on in the background. And the price is amazingly reasonable. It runs less than $100(Last time I checked) and they will be happy to give you a 10% educators discount. You just have to write to them.
The company to get this program from is Telestream.
I could gush for pages about how much I like this program. As I said, it is easy to use, and amazing control with the timelines. But rather than me tell you about it, why don't you look at one of their excellent tutorials: