I currently have a 660 graphics card and it works fine but i intend to get into more demanding things like high graphics gaming at higher res and other things, i intend to have a 2x2 1080p monitor setup and i want to get decent frames (30fps+) on most games i wont be running 2x2 all the time but it would be nice, i was curious whether i should get another nvidia card or go with crossfire, I currently have a fx4100 but intend to get a 8350 to replace it, my budget per card is in the range of 200-350