I’ve read about people getting a horrible experience on the PC playing GTA IV. I don’t know about them, but here’s my rig.

Blackbird 002
Intel Core 2 Quad Q9450 (OCed to 3.2GHz)
Corsair DominatorDDR2-800 2x 1GB RAM (soon to be a total of 4GB)
2x GeForce 8800GTS (G92, one eVGA and one BFG) 512MB in SLI mode (with dual monitor enabled) at stock speeds

Average FPS: 36.50
Duration: 37.39 sec
CPU Usage: 80%
System memory usage: 91%
Video memory usage: 97%

Graphics Settings
Video Mode: 1440 x 900 (60 Hz)
Texture Quality: Medium
Render Quality: Highest
View Distance: 42
Detail Distance: 100

Boy, the video editor’s fun as hell. I’ll posting some of my videos soon.