Your Nvidia / AMD stats are off Atranox. Its 59% Nvidia to 33% AMD.
http://store.steampowered.com/hwsurvey
Using AMD myself, still does excellent in games while at the same time sending very nice HDMI 7.1 sound to my receiver.
Vancha, if your running 1280 x 1024, I'd suggest a new monitor the next time your in the market. Whatever your PC buying budget is, split it in half. Half goes to the monitor and half the PC. You'll have the LCD for much longer than you keep that PC.