I just went and configured your build with what you've told us. $3000 dollars is outrageous man. I mean, I just don't agree spending absurd amounts of money for a product you can build yourself for a hell of a lot cheaper and make it a hackintosh yourself(although I can't remember if making a hackintosh is legal or not), but if you want to waste money it isn't my problem. It will run dolphin perfectly, aside from OS X problems. It would be wise to dual boot windows to keep from having problems.
Gaming Rig
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