I just bought a G4/700 iMac two days ago and waiting for it to be delivered. Anyway I wanted to use it for music production. I attended school for it a few months ago, and in the beginning they were using G4/700 Towers which handled production very good. That's why I decided to get it, but I don't know if there is a difference between them. They now use those new G5 iMacs now. I just wanted to know if the G4/700 iMac is good or not. Oh, and the G4 I'm getting comes with 10.4 Tiger.