this seems pretty easy, but while I use my powerbook for just about every thing else, I have never had an opportunity to edit audio recordings. I have a very basic audio recording from a lecture I attended and recorded on my mac. I would like to edit it down now and the only application that really comes to mind is garage band. Is this an appropriate application for what I want to do or do I need to use something else? I have garageband, but is there also a free application for this that I could pick up at version tracker or macupdate?