I realize we're talking apples and oranges here, but I am not convinced that Apple will in fact continue the Mac Pro next year. Hope they do, but I'm keeping an eye on the what if's and what if not's just in case. And in fact needs do change over the years. Some compromises may need to be made. I will be interested to see what sort of benchmarks a 3.4 imac with a 675 or 680 would get. In the end, I'm not going hackintosh and I'm not going to Windows and I'm not keeping my 2010 MP longer than another 6-8 months or so if I can help it. We'll see.