Motherboards
Abit Fatal1ty AA8XE Motherboard - PC Perspective
ASUS A8V Deluxe Motherboard - 3DX
925XE Motherboard Roundup - PC INpact
ASUS P5AD2-E Premium - TweakTown
Gigabyte K8NXP-9 Motherboard - t-break

Video
Gigabyte GeForce 6600 GT AGP - Legion Hardware
Gigabyte 3D1 Single Slot 6600GT SLI - Neoseeker
HIS X700Pro IceQ Turbo VIVO 256MB PCI-E - 3dGameMan
ASUS Extreme AX600XT/HDTV (RADEON X600 XT) - Hardware Zone
Gigabyte GeForce 6600GT PCI-E - AMD Zone
Triple nVidia 6600GT Shoot-out - HardwareZoom

Memory
Mushkin PC2-5300 DDR2 - Viper Lair
DDR2 Roundup - Motherboards.org
Corsair Twin2X1024-4300C3 DDR-2 Memory - PCStats

Cooling
Evercool WC-202 Water Cooling Kit - Madshrimps

Power Supplies
ThermalTake Silent PurePower 680W - Bytesector
Thermaltake PurePower 680W Power Supply - Bjorn3D

Cases
Silverstone LC10 HTPC Case - Ascully.com
SunBeamTech Black Samurai Mid-Tower Case - EOC

Printers
Samsung ML-2251n Printer - Overclockers Online

Input Devices
Thailand Display FlexKeyboard - 3DVelocity
Logitech MX1000 Laser Mouse - BogBruin.com

Multimedia
Creative Sound Blaster Audigy 2 ZS Notebook PC Sound Card - TrustedReviews
Creative Zen Micro - Hardware12v

"Other Stuff"
EZ Power Supply Tester - @ MetkuMods