Hi. Just to give a little background, I have been a Windows user for many years, an Ipod Touch user for 2 years, and am a brand new Mac user. I am interested in app recommendations for audio recording and audio editing on the Mac. For anyone familiar with Windows, I would like to find an equivalent to GoldWave. Here's what I hope to accomplish: recording via the internal microphone, recording the system audio, and recording via the line-in jack, but none of those at the same time. I also need to be able to merge and split files, move, copy or delete selected portions of files, and occasionally apply special effects, noise reduction, and volume normalization. Friends have suggested Amadeus, Piezo, and Audio Hijack Pro, as well as Garage Band. I am interested in reading others' experiences with these programs, as well as any other audio recording;/editing app recommendations you might have. This information will assist me with making a decision on which apps to shell out money for. Thank you in advance for your feedback.