Skip the factory OCed version and get the regular XFX 5850 crossfire. They'll run you ~$310 each, so $620 total, you can OC them just as easily as XFX can and they cost $30 less per card. Also, the 5970 is like $700 right now, when you can find one, so its cheaper to get 2x5850s, especially if your mobo and everything already supports an xfire setup. Overall, if you are going for bang for buck, the 5850s is a better choice. On the other hand, if you have the cash lying around, then get the 5970 and have the option of getting a second one for xfire later so more upgradable.