I currently have a Dell dimension 5000 with a p4 530 (3ghz), 512mb DDR2 and a 6800 256mb pci express graphics card. I can run far cry with everything on very high at 1280x1040 with no slowdown. So can someone explain what benefits I would get adding another 512 ram? Also, can i just fit 1 stick of 512, or do i need 2x 256? Why do people need to spend loads of money on the very fastest components when my modest PC can run the latest games perfectly?