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Its running smoothly right out of the box and not tweaking anything. Here is my setup:

Dell Optiplex GX260N (Its a tower version and not a small form factor PC)
1gb ram
Nvidia Geforce 4 MX440 128mb card with AGP 8X
Intel Pentium 4 1.5ghz Processor!

Runs quite well!

I came home after paying the utility bills and had some money left over, so I decided to get this game. I don't have a fancy analog controller, so my generic 10 button gamepad works.