If you don't need the OS, then you could move up to a crossfire capable build, but I figured it wouldn't be necessary anyways since you are playing only FSX (which reacts unfavorably to multi-GPU setups).
Thanks for quick and detailed reply!
I have the OS but I do not think that the MOBO does crossfire. I do not know much about DVD burners, but I record hypnosis sessions for clients. Any suggestions?