Podcasting

http://www.apple.com/life/tutorials/

Audacity

For creating podcasts on Mac and Windows, audacity is a free audio recording and editing program. You can edit multiple audio tracks and create a dynamic podcast.

To get a copy of the software please visit the Audacity website: http://audacity.source.net/

To view the tutorial, please visit this webpage: http://audacity.sourceforge.net/manual-1.2/tutorials.html