......on high quality, bump mapping and 1024x768 resolution with 2X AA and 2X AF and still get 35-48 fps in most scenes.

My PC specs:

L7VMM 4X AGP motherboard
AMD 2100+(1733 MHZ)
512 MB DDR PC 2100
ASUS V9900 GEFORCE FX 5800 (non ultra) overcloked 490/950 mhz

So should it run like that?