step 1: identify your sistem
AMD xp
1500+ very low settings
1800+ low settings
2000+ minimun settings
2400+ minimum settings
2600+ low-mid settings
2800+ mid settings
3000+ mid-high settings
AMD 64
2800+ mid-high settings
3000+ mid-high settings
3200+ mid-high settings
3400+ high settings
3600+ and above insane settings
intel p4
1.5 very low settings
1.6 very low settings
1.8 low settings
2.0 low settings
2.4 mid settings
2.8 mid-high settings
3.0 mid-high settings
3.2 high settings
3.4 high settings
3.6 and above insane settings
RAM
256mb very low settings
512mb mid-low settings
1GB mid-high to high settings
1.5gb high settings
2GB insane settings
Video Cards
ATI
8500 low settings
9000 low settings
9500 se low settings
9600 se low settings
9500 low settings
9600 low settings
9500 & 9600 pro mid settings
9800 se mid settings
9800 mid settings
9800 pro mid-high settings
x700 &x800 pro high settings
9800 pro 256mb high settings
x800 pro xt insane settings
NVIDIA
GeForce Fx (GeForce 4 will not work)
5200 low settings
5400 low settings
5600 low settings
5800 low-mid settings
5900 low-mid settings
5800 u mid settings
5900xt mid settings
5950 mid settings
6600 mid settings
6600 gt mid-high settings
6600 gt 256mb mid-high settings
6800 and above insane settings
step 2: do the math
if you have a low processor and a mid ram and low video card: low+mid+low= low settings
mid+mid+low: mid-low settings
mid+mid+mid: mid settings
high+mid+mid: mid settings
high+high+mid: mid-high settings
high+high+high: high settings
insane+high+high: high settings
insane+insane+insane: give me your computer