Looking to buy a second hand Powermac G5 because my current system (a pc) is dying of age. I don't need to have the fastest of the fastest, and I don't have the budget for it, so I'm not really into the latest line of Mac Pro's. However, I want a solid system on which I can run PT 7.x with a Digi002 interface for a couple of years to come. I do mostly (rock)music productions so the use of many tracks and plugins is required. What would you recommend? Right now I'm looking at a dual 2.5 or 2.7 Ghz with 4 Gb memory. Will that be sufficient? These are about half to a third (!) of the price of a second hand Mac Pro with Intel processors. Thanks.