Hello...sorry if this is a long post, but I have a difficult decision to make, and you all are the most informed people I could possibly get an honest answer from (as expected, the Apple store guys told me to buy new everything). If you are an audio user (pro tools especially), or just a knowledgable mac head, please drop your 2 cents. Anyway, here it goes (multi-part). I need two computers, one needs to be a desktop, and the other needs to be portable (laptop). I will get an updated 23" HD display regardless of any which way I go, so that is not a factor. The first option: I have a dual 500 sawtooth G4 (Gigabit) with 896 of RAM, that I have already invested 1,500 into for audio (i.e. Digidesign PCI interface with RME convertors). That audio hardware will NOT be compatible with a g5. However, the sawtooth is barely doing the trick for me anymore, so I was thinking of upgrading to the dual 1.2 processors (powerlogix) for 699, and then buying a 15" powerbook (speed bump) when they are updated. The powerbook is desired, because I will not only need portability, but also decent processing power. This way, i can get 1.5 more years out of my g4 (studio use only, powerbook for all else) until the g5's are lightning fast. Or can I? Is this a bad idea? Am i beating a dead horse? (audio people help me out). What steps could I take to make the g4 run adequately? Second option: get a new g5 desktop if the g4 won't cut it (or if the processor upgrade is too risky), and buy new audio hardware, which will kill my hopes of a Powerbook laptop (I may be able to afford an iBook or something slow, but that's not desired). Anyway, to sum it up, can the g4 be upgraded or milked (stripped down to only Pro Tools and Pro Tools settings) for ADEQUATE performance for another year or so, or is it dead? Should I try and wait for the Powerbook g5, or is that a hopeless venture? Do I need to put the dual g4 upgrade in or can I get away for a while with the 1.4 single? How much faster would either one be than my dual 500? Sorry about the world's most annoying and long post. Hope I didn't put you all to sleep. Anyway, i appreciate your help, and thanks for the comments!