I still say you wont gain that many fps. Even the most powerful gfx card wont help as supcom is mainly cpu orientated, so is laggy fps cos of the cpu. Heck i think even them quad conroes have a hard time of it with massive battles. Sup com is one of them games that is too early released cos of the hardware currently out there.
Skeet, when I've had the dud 8800GT I've had 120 fps on the same settings I now get 25 fps, it is cpu orientated yes, however with a 6800GS, it's MUCH more gpu limited. You keep implying a 3 ghz c2d can't handle supcom 2vs2 battles, a 3ghz core 2 duo is quite a lot faster however than your 2.8 ghz AMD x2. It won't drop to 10 fps and stay like that always unlike with your specs... You can't say a better gfx card won't help, because your 1950pro is enough for supcom, a 6800GS however, by far isn't. You say your fps drop to 10 in the late game, well, I don't have that problem, my problem is the fps are poor from start and stay like that.
Anyhow back to ontopic, I don't like FA as much as the original SC, everything seems to take much longer, and even an easy ai can give you a hard time ( I got beaten twice before I finally managed to adjust to the rushing easy AI.). And I managed to finish the game just just 1 minute after I got my first tech 3 engineer, wich is, well err odd, as I could wipe the AI base with just a few tech 2 and mostly tech 1 untis, he didn't build defences at all

. He did have 10 t2 engineers rushing to upgrade and build mass extractors and mass storage.