I currently use a windows based PC with Cubase SX 1.06. I have been needing to be on the road more (school, and work) and I want to buy a laptop. I am really tired of my WinXP machine crashing. So its time for a mac. The audio hardware I use consist of an Yamaha S80 keyboard, KRK monitors, and an Edirol UR-80 audio interface. I want to either buy a 14" ibook G4 1Ghz or a 12" powerbook. I would rather buy the ibook, but I need to know will it be able to handle recording just as well as the powerbook. I use plug in effects, and virtual instruments, and a software sampler (kontakt,halion), and usually 10 audio tracks max. Also, I am buying an external FW400 drive to ensure good HD recording.