Question: I've decided to buy a Quad Mac Pro to do mid-range tasks: VMWARE, Vista X64, QuickBooks, Office, multitasking, nothing requiring 8 cores. I will not buy anything but the Mac Pro. My Question: Do you believe the QUAD 2.93 would be a big enough performance boost to justify upgrading from the 2.66? Value Wise? Resell Wise? I don't care about the 8GB Ram Limitation. I think that # is inaccurate anyways. SO...who has bought the QUAD? And who has bought the 2.66 vs. 2.93? I know we're all waiting for benchmarks...but wanted to bring it up. I have a Dual 2.26 ordered, but am going to cancel for Quad. Thanks for any input.