John if you want to do MP, then download FSHost here (its freeware/postcardware), and it will allow MP with great frame rates, as it does the hard work for the system.

Ozzy

John, I'll assume you're already getting excellent frame rates off-line with that system.

The problem with multi-player is it's limited by your bandwidth in terms of your connection speed as much as the hardware you have on board. If you're on cable or DSL, you shouldn't have any problems. A dial-up connection might give you some stutter simply because of the relatively slow rate of data transfer.