Hi, As a powerbook G4 17inch user I would HIGHLY recommend waiting for mac to support intel chipsets. You will get more bang for your buck. If you need to buy something now I would look at it like this: If you are planing on using your puter for audio processing and editing/mixing/mastering an Ibook or mac mini will more than likely be just fine. If you are going to be using logic with lots of softsynths, Units and plugins and of course automation more proc will be necassary. Not to mention you will need at LEAST a gig of memory. Mac'a ram is particularly expensive so keep that in mind. I have a gig of ram logic 6 + 1.3Mhz proc and can run 15-16 instances of emagics ES2s' and full automation without much latency. I dont think it would run much more smoothly though. If your using lots of soft samplers plan for more memory still. I plan on buying a PC in the future for extra proc, just to run VST and soft synths and run it all into my mac just like an external piece of hardware. Cheap way to amp up a mac based station. that way you get the best of both worlds, cheap power for hardware intensive software, then put your songs together on the sexier smoother mac. anyway thats my two cents hope it helps.