looking to upgrade my video card and i really like to get a 256mb card. but i only want to spend around $100. i don't mind if it's a flashed pc card either. but i'm looking at 2 different cards for my sawtooth, a new nvidia Geforce 6200 256mb for $75 which will work for my mac or should i get the 9800 pro 256mb and pay up to twice as much? they are both agp cards too. i plan on running dual monitors as well.