Oh, so you'd already got the items. I thought you were still deciding on what to get.
For about $230 there exists several models of the HD6950, and that would be a good idea for high-quality 1920x1080 gaming. My HD6850 runs BC:2 mostly all high with a good 55-60FPS, so you should be just fine. These cards also run great in Crossfire, should you need to upgrade for any games that up the ante for graphical requirements.