I actually have:
Video card: ATI READON X1300PRO 256mb
HD: 280 GB
RAM: 4GB
Processor: Intel Core 2 Duo E8400 3.0Ghz
Motherboard: Dell Inspiron 530
Runs SS08 in medium great, but don't work SSE
But I will upgrade my PC and I will have:
Video card: NVIDIA Geforce GTS 450, 1GB
HD: 300 GB
RAM: 5GB
Processor Intel Core 2 Quad Q9900 3.0Ghz
Motherboard: Dell Inspiron 530
Runs SS08 in maximus, SSE too (and call of duty 7 too
).