Lots of luck finding an original reference model like that. AFAIK it's been discontinued.
This is the new standard design that replaces it. Quieter cooler, but not as much connectivity. It loses the 2 mini DVI connectors. Not usually a problem, though. If you do need them, or want to run eyefinity, the
Flex model retains them and runs 3 monitors without requiring any adapters. Both of these come with the 2nd bios unlocked to 1536 (HD 6970 level) shaders. No guarantee though that they will run unlocked, although most of them run fine. Both of them have better coolers than the original reference model does, except they don't exhaust the air out of the case. The
Toxic model comes clocked at 880MHz (HD 6970 speeds, but 1300MHz mem clocks) and also is pre-unlocked, if you want a model that exhausts the hot air out of the case. Quieter cooler than the original reference too.
Personally I would get the Flex edition, if you want a recommendation, but any of them are very good cards.