As a budding musician (well.. I like to make noises with my guitar!) the prospect of using Garageband seems too good to miss. However, i was wondering if there was any way of using Garageband on an iBook short of getting the m-audio interface? or is it worth me forking out the extra for a 12" powerbook, which i am loathe to do despite the fact that i could get the student discount, and therefore obtaining a line-in and a faster computer?