Thought I'd reply to something mentioned earlier...
Quote: "...If you cap it at 200 and someone makes a park so big that their fps drops to even 60, the game's going to run a LOT slower."
You can use the DarkSide White Rabbit DLL to fix timings like that.
Quote: "reflection doesn't harm my fps rate"
Actually, it does. Just make a simple test program without a framerate cap and with a spinning cube, and try it with a reflection plane, and without one. You'll see a difference, believe me.
AMD Athlon 64 X2 4200+
1GB DDR-SDRAM (May increase to 2GB one day)
512MB ATI Radeon X1800 Series - Finally! A card that does pixel shaders correctly!