Hey guys my brother is going into the military soon. So he gave me this computer stuff. Here is a rundown of the goods. Gigabyte GA-EP45T-UD3LR motherboard Intel® Core™2 Quad Processor Q6600 processor Corsair HX620W powersupply Patriot Extreme Performance 6GB kit DDR3 Memory I already currently had these parts below. DFI LANPARTY DK X38-T2RB motherboard Intel Core 2 Duo Processor E6750 G.SKILL DDR2-1200 PC2 9600 4GB(2GB x 2) Memory Corsair CMPSU-650TX powersupply Video cards 2 ASUS EAH4870 DK 512GB 1 SAPPHIRE HD 4870 1GB I know I can get 3.4 out of the Q6600 and 3.6 out of the E6750 in either board. The DFI offers me crossfire but its DDR2. The Gigabyte offers no crossfire but DDR3 in dual channel. I am looking for advise on what combination I should use these parts in to get the best gaming machine. Pretty much BFBC2 right now is what I play. What parts would you combine to get the best setup?