Below are the specifications of my computer, self-built in March, 2006:

CPU: AMD X2 4200, standard heatsink/fan
MB: Epox 9npa+ Ultra (Nforce4 Ultra, non-SLI)
RAM: 2 x 1GB OCZ PC3200 Platinum DDR2 (running at lowest spec'd CAS latency)
PS: Antec Neo HE 500W
Video: Leadtek 6600GT 128MB PCIe, DVI/TV-out, has a quiet fan
HD: WD 3200KS SATAII (this drive is great)
Case: Antec Super Lanboy (120mm fans front and rear)
DVD-RW: LG GSA-H10NB 16X DVD+/-RW Dual Layer
DVD-R/CD-RW: Samsung SM-348B 16X/48X
Iomega Zip100 drive
Nec LCD1760NX DVI flatpanel