If you can do it, I challenge you to. But I did a little research (not much, it's late) on the E6600 and this is the data I found comparing it to the E-350 and chipset:
Conroe E6600: 143mm^2 die, 65nm, 65w, $224
945GC chipset: 22.2w
Brazos E-350: 75mm^2, 40nm, 18w
FCH: 28mm^2
The...