ForeverOmega

Hey yall, long time follower for ARMA 2, didn't really Enjoy the first but i liked what i played of the demo and the videos and big follower of OFP2 and PRoject Reality but anyway's i was seeing what yall were typing and i was wondering if anyone has this set up and what are the specs they can run it at. Vista GTX 260 Core 216 SLI i7 920 (Not Overclocked) Or 4890 1gb Crossfire 4Gigs of DDR3 ram What is the exact settings and can i run AA on with either?