Looking for best single slot Radeon

I am building a system around a MSI A75MA-G55 mobo. I am installing it into a small lan box. So I dont have too have too much room. I can probably fit 2 slim Radeon video cards for the crossfire platform power. But I really dont want to use a double slotted card unless I really have too. Can anyone suggest the best power single slot solution to my system? I would like to stay with the ATI Radeon GPU because of the ATI chipset on the mobo. Thanks for any help in advance. :t

What will you be using the computer for?
I.E., gaming, etc.

In the mean time this chart might help out.
http://www.tomshardware.com/reviews/...ce,3067-7.html

Best Graphics card for the money.
http://www.tomshardware.com/reviews/...6990,2879.html

My apologize. Yes gaming most of the time. :rolleyes:

A lot of the newer cards do take up a lot of space. But check out the video cards.
http://sites.amd.com/us/game/product.../graphics.aspx