I prefer to always use dual monitors but I am not sure how to calculate how much video card I need while gaming, and what the best setup is. I set the games to windowed mode / full screen in my primary monitor, and then use the second monitor for ventrilo, a browser, a movie, or whatever at the same time.
My current setup is a GT 640 1GB,8GB RAM, and a FX-6300 cpu. I play Battlefield 3 at 1600x900 resolution, with a movie on the second monitor. It doesn't run too smoothly most of the time. The max i'd be willing to spend is $250 ,but i'd like to save if i can.
Thanks for the help!