Has anyone ran Garageband on a 12" PowerBook? I was wondering how well it ran. I have someone who wants to switch the Mac and buy a 12" PowerBook for Garageband as he is in a band and wants to use it. With the hard drive spinning so slow it seems to me like it wouldn't run well at all. I have a 1 GHz iMac and it runs just ok for me and I'm not even doing any hardcore things with it. He was going to get an iBook, but that doesn't have an audio line-in port so its kind worthless for him to get an iBook.