I really want to be able to record stuff from my guitar and vocals (nothing else really) in order to better understand how to layer parts and harmonize guitars. I don't know anything about everything when it comes to recording. I know I need a mic and mic cable (shure SM57 from what I gather). I have a MAC G4 powerbook which I'll probably use (maybe add a hard drive). What do I need exactly? And what equipment do you recommend (nothing too expensive, but I also want good sound quality). The only other thing I know is Mackie Mixers are nice. That's it. Please help if you can. PS What is Phantom Power? (Very layman's terms please). Thanks.