Software is your biggest concern, any quad core cpu is more than adequate. Most of the newer and older models use 95 watts; the q6600 was only $150 closeout at Fry's recently with free motherboard. Amd goes to both extremes; they have the 9150 at 1800 hertz using 65 watts, while the 9950 uses 140 watts. I'm wondering if any software permits you to use apple software on a standard pc? I know apple systems can use alot of standard software since their switch to Intel cpus.