I'm currently running a 9800 PRO and it can't seem to play any new games at 1600x1200 so I'm thinking if it's worth getting a 6800 GT, 6800 Ultra or should I save up for a PCI-E upgrade so I have more choices of video cards in the future? Would going from a 9800 PRO to a 6800 GT or Ultra worth the 300+ dollars?