9100 here with:
x1800xt
x2-4400
1024 mb ddr 400 @cas2
1 x 200 GB ATA
300 GB S-ATA-Raid (2 x 160)
460w psu (why would anyone need more with a less powerful rig?)
no overclocking
Considering that SLI doesnt work or improve FPS with every game I´m not sure if it is worth it...