This is just a friendly warning about the iMac 5k. Seriously, if you see one on display at the shop or at a friends, just look away. Don't even glance at the screen. And whatever you do, don't pull up a gallery of your own photos and see how gorgeous and sharp they look. IT'S A TRAP!! Seriously, I've been back to the store 3x to try to convince myself it's not really as awesome as it was, and every time I am blown away again. The pics just look so sharp and lifelike. I've never seen my own pics from my own camera look so good. It's more of an "image quality" upgrade than I would ever expect going to a larger sensor with my camera. I'm more of a PC guy and my current computer is about at iMac level in terms of performance. And I hate that you can't just swap drives, etc. So why can't I stop thinking about buying one?