My Mac Pro is from 2008 (2.1) and it won't upgrade past 10.6.8. And Aperture will only upgrade to 3.2.4. Just when I'm shooting more RAW with newer cameras, I can't deal with the files. And sometimes the machine boots up with fans roaring like an airplane getting ready to take off. (Turn off, unplug, plug in, turn on.) And then there's the random spontaneous reboot. Makes me think it's getting old. Sure, it would be nice to pick up one of the new Mac Pros, but that's beyond the budget. Since the new paradigm seems to be a size-reduced processor, attached to peripherals, should I be considering a recent model Mac Mini and some external hard drives? When I search Craigslist, I find a lot of models like the mac pro I have for sale, but not many of what I want as an upgrade. I already have a nice big monitor. Suggestions welcomed. Maybe the Mac Pro should live as file server for the new Mini?