Odd, I see you are using the latest version driver for your gpu. I have a 9600 so am using a different version but i was getting better numbers than you on a 8600 before this card.
With a 8800GT you should be hemoraging FPS in the 100's under most situations in WOW. I never tried Conan on any 7xxx or 8xxx Geforce though.
I havent used this but I saw it on the AOC forums, Hopefully it can help you narrow down the problem.
Can You RUN It?