Here is my latest called Hyper Snail:
Hardware:
Opteron 180 (2x2.4GHz)
2GB RAM
Asus A8R32-MVP
2 x x1900xt
BFG PhysX PPU
WD Raptor 150
Dell 3007 30" LCD
Cooling:
Aquacool pump and reservoir combo
Swiftech Storm for CPU
2 x DangerDen Tyee for video
DangerDen Maze4 GPU for PPU
ThermoChill PA120.1
3/8" Tygon tube