could i get suggestions on cominations to think of buying? which is better, the Intel Core 2 Quad Q6600 Processor HH80562PH0568M - 2.40GHz, 8MB Cache, 1066MHz FSB, Kentsfield, Quad-Core, OEM, Socket 775, Processor;the Intel Core 2 Duo E6850 Processor HH80557PJ0804MGS - 3.0GHz, 4MB Cache, 1333MHz...