My dad's rig...

AMD FX-60 @3.025GHz on H2O
Corsair COOL water cooling
2G Corsair 3500LL RAM 2.5-2-3-5-1T @1:1 ratio
2 x XFX 7900GT Extreme cards in SLi (volt mod 1.4V) on H2O
Viewsonic 20" LCD (1600 x 1200)
Silverstone Strider 600W modular PSU
Creative X-Fi XtremeMusic
Seagate 120G PATA
Seagate 120G SATA
Seagate SATA II 250G
2 x Sony DVD-RW (DL)
120M Zip Drive
Floppy drive (for BIOS flashing only)
Logitech G15 keyboard
Microsoft Laser mouse 6000
Lian Li PC61 USB case with PC-65 side window
Yamaha TSS-1 5.1 amplifier/speakers
Windows XP Professional SP2