Which Mac would be better for recording? The two systems that I am comparing are: a new imac 700mHz,256MB RAM,40GB HD,DVD-CD/RW; or a G4 desktop 733mHz,128Mb RAM,40GB Hd,DVD-CD/RW. I will be using a digi design Mbox to record, it hooks up through the usb port so I don't need to add a sound card. Any advice on which computer would be better? The imac is cheaper and I could use the extra money on a good quality mic so right now I'm favoring the imac, but any suggestions would be much appreciated.