Which Mac software to choose?

Question

Podcasts

How to record a podcast - audio only?
A screencast - sound and screen?
How about a video lesson. Just from a video camera?
Thanks

Answer 1

While the issue was resolved, I bought ScreenFlow 5. In the near future I will start studying and trying to use it.

Answer 2

To record videos/letsplays I use quicktime which comes with the OS.
The quality is good, the sound too.
You can write podcasts, videocasts, just videos.
Six months ago I recorded d3 on quicktime www.youtube.com/watch?v=pZj4_C8ek3U

Answer 3

I mainly use Jing (free) and Snagit (paid).
I can recommend Screenium
And here is a list of 10 screencast apps mac.appstorm.net/roundups/utilities-roundups/10-sc...