Just curious, how does the mother board relate to all this.. what are the restrictions?
I have a Gigabyte GA-EP45-DS3R (click) LGA775, North Bridge P45 Exp with a Intel Core 2 Duo E6600 2.4GHZ and 2GB DDR2 800 Patriot Extreme RAM. My video is an EVGA GeForce 8800GTS 320MB

I'm getting very smooth game fps, mostly in the 50-60 range with the two scenery slidders on 3, clouds on 4 and the plane and effects on 5

I wouild like to be able to turn the scenery up higher.. What are the possibilities with this board and it's restrictions?

Would I be better off upping my memory to 4GB, updateing my CPU, or my Video card, or try over clocking? What would have the most effect?

Thanks,