I think I'm going to be buying the rev. C Power Mac Dual 2ghz model Thurs. morning via Apple refurb. I know, I know, it's the "crippled" model compared with the Dual rev. B. Should I really be waiting for the Rev. B to show up on the Apple refurb site? It IS cheaper and arguably better! The Rev. C at 1549 is as high as my budget goes. My plan is to buy one of these and have it hold me over until rev. B at least of the Intel Powermacs, maybe rev. C. In other words, I'd like this system to last me a good 2 years. So Rev B or Rev C?