Free tool that allows you to record any audio on Mac OSX

SlickZero

Here's a nifty little tool I came across. It will record anything that plays through your computer. It can be useful for recording gameplay if you use Quicktime for screen captures. Can just sync the audio with the video after you record it. All kinds of things you can do with this.

It has a 10 minute time limit for recording.

http://rogueamoeba.com/audiohijackpro/

Chobbiface

Very useful thanks!