I didn't try that mission. I'm quite bussy and didn't play clod much this days.

I may give it a go some time next week. I'm not expecting too great performance though. I play at 2560x1440 and that resolution is cruel to videocards. My old gtx590 was chocking.
If you can get it, that 660 gtx deal is good and should play the game great at your resolution.
Good luck with the hardware hunting and lotto.