Graphics card HELP!!

[lazypie_man]

so iv almost completed my rig, except graphics card

Intel Sandybridge i7-2600K Unlocked Core i7 Quad-Core Processor
Corsair CAFA70 Cooling Air Series A70 High-Performance Dual Fan CPU Cooler
Gigabyte SKT-1155 Z68X-UD7-B3 Motherboard
Corsair 16G (4x4GB) 1600MHz Vengeance Memory
Corsair AX1200 PSU
2x500GB HDD
1x 60GB SSD
Samsung blue-ray player
Antec 1200 case

so this is the rig so far the question is what would be the best graphics card to use with this system?

I was thinking the ati 6990 but its a bit expensive so maybe the next one down?

any advice would be appreciated thanks.

 

[browsingtheworld]

What resolution? 1920x1080 then a GTX 570 or HD 6970 would be excellent choices.

 

[celpas]

http://www.tomshardware.com/reviews/best-graphics-card-game-performance-radeon-hd-6670,2935-7.html

the next step down is the 580.It will handle your 1080p resolution with ease