im in the same dilemma as well.right now running 924/2000 for 3 months now but who knows what might happen next
I know it's completely covered by warranty, but not having the card for over 3 weeks was a pain. Even after my dad let me use his 5850 I was still pining for my card's return (you understand....that thing is damn fast at or above 900mhz!).
Bfbc2 gets bogged down on multiplayer ever now and then when there's a lot going on (I know I just need to lower some settings, but it's hard to do once you've had a taste of the real thing) and I can't even play Crysis due to driver issues (too lazy to sort it out considering it's a temporary fix).