I know Crossfire doesn't work on the Mac, but if you get 2 X1900XT's w/ a dual monitor set-up could it actually be better than X1900XT's in crossfire with a single 30"? What I'm think is probably wrong, but each card is seperate and would do only the screen their connected to, right? So if you have each card running on a monitor at 1440*900(just a random reso); wouldn't that be better than a single "unit" running 2880*1800? Sorry if it's really hard to understand. I tried to explain it the best I could .