Screen Cap recommendation?

I need software to capture what im doing on the computer screen and something that also detects audio. What you you guys use?

 

I use the free version of Jing. It takes screens and video/audio. The only reason to upgrade to pro is to save to different formats, but you can just save your captures, then open them and save as to get around it.

Code:

http://www.jingproject.com/

 

Camtasia? They're pretty good for screen capture-related stuff...