Low profile video card for dell Optiplex gx280 small desktop computer.?

I want a low profile video card for my dell Optiplex gx280 small desktop computer.

something that would make cod4 and 6 run smooth enough to play. (1gb would be nice!)

Thanks for your suggestions.|||Here are 2: http://www.newegg.com/Product/ProductLis…|||Nvidia 9600GT $89.00 or 9800GT $109.00 newegg.com.