I love mine. I still use WASD for movement though. The stick is great for mapping stuff like secondary weapons and equipment to though.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102908

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371030

That should do you well.

Keep AA off and you should be fine. Maybe bump a few things down to High.

When you are putting $600+ into something it's well worth it to spent the extra $75-100 to make sure you get the best bang for your buck and the most out of your money. It's going to last a lot longer before needing to be upgraded again.

I plugged mine in to check for you. It works but well but it still shows the PC keys instead of the 360 buttons. The controls are easy to figure out though.

My 6950 runs everything Ultra (1920x1080) @ 40-50fps. Very pleased.

Either would do it but you might as well get the 750w Antec.

If you think you might want to crossfire in the future you'll need a different board though. Try this one for $10 more.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157271

Just noticed the Antec was right about the same price. Might as well just go with that.The Seasonic is a very good PSU as well though. Both are two of the best PSU manufacturers out there.

That is a very good power supply. Very good quality. It's plenty enough to even crossfire 2 6950s. Mine does it without breaking a sweat.

Got bored with Bulletstorm halfway through. Rage was a blast all the way through.