Im building my first gaming computer, I want to pay about $750-$800 for the parts. These are the parts i have so far. Intel core i5-3470, MSI B75MA-P45 motherboard, XFX Radeon HD 7870 graphics card, 8GB corsair vengeance DDR3 RAM, 1TB Western Digital caviar black hardrive, Nzxt source 220 case, 500W corsair Cx power supply and a Lite-on super allwrite 24x SATA DVD +/- RW dual layer drive-bulk- 1HAS124-04