I have a PIII, 800Mhz, 384Mhz RAM (3 128's), XP Pro, and a GForce DDR-DVI, 56k (have DirecTV-will not pay $80 a month for cable modem without cable).  Gonna be upgrading to a GeForce 3 Ti200 64Mb DDR (maybe the 128Mb).  I have no idea what my frame rate is in the arena but, I have had some good runs.  My computer runs just fine and I can't wait to get my new Video Card.
Masher