I have a dual monitor setup, I run my main monitor at 1920x1200 (which is what my games run on) and my 2nd at 1280x720 (best res, it's a projector). I'm looking to get a GTX 275 but also currently deciding on which memory size to go with. Since I can't break 1920x1200, I tend to crank the AA. That being said and considering the dual monitors (both are used at the same time, call me crazy) would I benefit from the extra memory? What kind of strain do dual monitors put on a video card?