Ok, so I've had my ibook g4 for a looong time, and I think it is time to update now. (I think it is about to die anyway) I mean, I basically have Spore:galactic edition collecting dust on my counter because I can't play it without an intel mac with leopard. I also do a lot of audio editing and the performance is so slow it kills me. Since I plan on majoring in Multimedia arts and Music next year when I go to college, I was planning on getting the new 15" Macbook pro. Is this a good idea? Should I get a macbook instead? How much of a significant change would there be between my ibook g4 and the new macbook pros?