PC #1 (desktop PC, gaming/etc):

Motherboard: Asus A7V8x (VIA-chipset, avoid at all costs, never touching them again) motherboard, onboard 10/100/1000 LAN
Case: Coolermaster Black-Aluminium "Praetorian", with side-window
PSU: Enermax NoiseTaker 600W "twin-fan"
CPU: AMD Athlon XP2600+ (running at 2083MHz)
RAM: 1xDDR400 1GB, 2xDDR333 512MB
Gfx: Gainward 256MB GeForce 6800GT
HD1: Maxtor 120GB Plus9 (7200rpm, 2MB cache)
HD2: Maxtor 250GB DiamondMax Plus10 (7200rpm, 16MB cache)
Sfx: Soundblaster Audigy2 THX/EAX
DVD: Sony DVD-Rom 16xDVD/48xCD
DVD-RW: NEC 8x8x (single-layer) DVD +/- RW
Input:: el-cheapo £3 keyboard (PS/2), Raptor Mystify Mamba Special Edition mouse (USB, 5-button)
Monitor: iiyama 19" VisionMaster Pro 454, 1600x1200 @ 85Hz
OS: Windows 2000 SP4

PC #2 (planned web/mail server, can't remember half of what's in this):

Motherboard: Asus uber-old thing, ca 1995
Case: standard tower-case
PSU: standard 300W supply
CPU: Pentium P233MMX
RAM: 2x128MB 133MHz SDRAM
Gfx: 2Mb S3 Virge
HD: IBM/HGST 120GB (7200rpm, 2MB cache)
Sfx: Soundblaster AWE32
CD-RW: Lite-On 52x16x4x CD-RW
Input: el-cheapo £3 keyboard (PS/2), el-cheapo 2-button Microsoft mouse (PS/2)
Monitor: AOC 17" monitor, 1024x768 @ 60Hz
OS: Debian Sarge (stable) with kernel 2.6.8-11