I have gone through some of the iMac vs mac pro threads here, and found them very interesting and very useful as I make my own agonizing decision. I am a digital artist. I own both a G3 and a G4, which I have meticulously taken care of, and which I have upgraded to the max. I do medical and science illustration, which is very exacting, plus I do graphic design, major photo-editing, Flash, and web design. I loved the iMac 24" 2.8GHz I saw today. I know it can handle anything I need it to do -- at present. But what bugs is that life-span is very important to me. I've had my G3 since 199? and still adore it and use it -- same with G4. I don't like to, and generally can't afford, to purchase every 4 years or so. People here keep saying the iMac has a 4 year life span -- that creeps me out. I want a long-term commitment I also love to get under the hood -- can't do that with iMac. I'm thinking -- go for the Mac Pro, 2.66, 2GB RAM -- what I can afford now, which is 99% probably of my current needs, and expand it in parts over time. I can't anticipate today what my future needs will be (I've been out of geek circulation for 5 years due to serious family illness) and honestly am not sure what people in the trenches now need (I used to follow every detail!) -- but it seems that whatever they might be, I can grow my Mac Pro around them. Am I making a good decision? As beautiful as the iMac was, would I probably be regretting purchasing it 2 years from now? Let me conclude with a stupid question: does the Mac Pro require special types of hard drives? I have some young ones I recently piggy-backed to my G3 & G4 -- can I stick them in one of the Mac Pro's bays? Thanks so much to all who have bothered to read yet another iMac or Mac Pro post, truly.