I'm getting so bored of waiting for Apple to bring out a new Mac Pro. So I'm now thinking why it's not possible to upgrade the processors in my dual 2.66 quad core Intel Xeon Nehalem to the new Westmere 3.33 GHz 6 core Xeon processors. They run the same voltage range so the existing power supply should be fine, have the same 1366 socket and can use the same RAM specs. Cooling should be fine as well. However, will the motherboard in the dual Nehalem Mac's run Westmere processors? Does the BIOS need to be upgraded? Would a 3rd party motherboard run them instead? I'm gathering no one has done this yet. Any thoughts would be appreciated.