when I built my latest PC, I wanted power but also silence so I could concentrate on working.

PC

Abit AB9 Pro motherboard
Intel Core 2 Quad 6600 overclocked to 3ghz
Arctic Cooling Freezer 7 Pro silent cooler
3GB Crucial Ballistix ram
Nvidia 7600GS silent graphics card
500 watt Seasonic quiet PSU
2x 250GB Samsung SATA2 hard drives
2x Pioneer 212 SATA DVD burners

Software

Sony Vegas 8
Windows movie maker
Nero 8
Windows DVD maker