I do only have 1 PNY gtx 460 1gb though, you have 2 8800gt's.
Yeah but you GTX460 1024MB is faster than my 2 880GT's 512MB combined (In SLI that means you only get 512MB total for both cards as both cards get the same instructions/data send to there memory)
So should be a piece of cake for you.
I can Run Both Crysis and Crysis Warhead just fine in Single Player, but like i said the Maximum selectable Resolution for my Full HD (1920x1080) Screen is 1768x992...
In Crysis Wars (online) i can select 1920x1080 fine due to a Update/Patch, but it than it runs a litle bit less smooth, and i have to lower some settings one step.
Merry Christmass Everyone (getting a white christmas here for the first time in years

)