This is my last wanting buying advice post because I want to STICK with the decision this time. I'm buying a PowerMac. I'm buying a 2ghz Dual CPU or 2ghz Dual Core Powermac. Both will be refurbed. At either $1449 or $1699. Is the Dual Core worth the extra $250? I want to keep this machine for around 3 years or more. Both being G5s, then I will buy an intel powermac when everything is officially 100% universal/intel. These two computers are basically identical no? Except for the ddr2, pci-express, dual core instead of dual cpu, better graphics on the pci-express. But the guts are really close. So if my budget is at $1500, should I stretch it a bit more to the Dual Core?