Dark-Energy: I agree with ripken204....

The 5870 is a very nice card, I'm still stuck with a 4870 so if the price is right I'll definetly be getting a 6850/70 (depending on price).

IMHO, if I already had a 58xx series card though, I'd wait a while and see how things shake out. The 69xx series should be out in November, if you can wait another month it may be worth your while to hold out and see where prices settle....