Hello folks, I'm awaiting - I'm hoping - the announcement of the new Mac Pros in early 2012. Yes, they're opulent machines, and somewhat excessive for my needs, but screw it: I want the meanest Mac I can afford. I was wondering whether someone could talk me through the practical differences of owning a Pro to a high-end Windows PC. My questions are: 1. Can I buy, and fit, regular upgrade components as I would with a PC, or do the parts need to be Apple-certified? I'm thinking particularly about graphics cards, optical drives and SSDs. 2. Thinking again about graphics cards; are there any processing-power advantages to running two graphics cards in CrossFire through OS X? I assume Pros have two (or more) PCIe slots, yes...? 3. How noisy is the Pro to run? This isn't a massive deal for me, but I'm curious. I assume that fatboy PSU can really make itself known in a quiet office...! In addition to this, feel free to tell me anything that you think someone looking to buy a Mac Pro should know. I'll be running OS X, save for gaming in Windows 7 with the aid of Boot Camp. Thanks in advance, DH.