There's quite a few competitive deals out there for 3.2 Ghz Core i7 processors, could you buy the cheapest 2.26 Ghz 8 core mac pro, take out the xeon processors, sell em on ebay and put in core i7 ones? Last time I put in my own processor was a pentium 3.. on a seperate note: Would a 2 processor mac pro mobo work with just one processor? Would it be able to access all the RAM? I do heavy 3d mesh calculations, I always found Mac Pro's make pretty good number crunching workstations. I need very high clock speeds and very big memory, but not 8 cores. So could I buy a 2 processor mac pro 2.94, deck it out with 16 GB OWC ram, and sell one of the processors?