I'm hoping to build a pc for racing games/sims soon but I can't decide on a graphics card. I will be using a single monitor at 1920x1080 with an i5 cpu and 8GB ram. I know sims aren't the most graphically demanding but I'm also looking to play F1 2011 with very high/max settings. My first thought was a HD5850 or GTX460, at the other end of my budget is the GTX560 ti or HD6950. I dont play shooters much anymore so maybe the 560 or 6950 ae overkill for racers? Driver issues can be a problem with certain games so has anyone here found nVidia to work better than ATI or vice versa with racing games like F1 2010, iracing, rfactor ect Thanks.