G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)
SAPPHIRE Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card (100314-3L )
Antec EarthWatts EA650 650W Continuous Power ATX12V Ver.2.2 / EPS12V version 2.91 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC "compatible with Core i7/Core i5" Power Supply
I was wondering what I should use my $600 on to get the best out of gaming (Skyrim, BF3, Crysis 2, Borderlands 2)
Should I get a new video card? Processor? If so, should I get a better power supply for the new card and/or processor? Should I get more RAM? What's going to give me the best performance increase and what parts do you recommend?