Custom build very low budget! (less than $250)
e3300 @ 2.9GHz (stock @ 2.5) For whatever strange reason I can't get past 2.9 (un adjustable memory timings = no POST)
2GB ddr3 ram in dual channel (PQI)
asrock g41m-vs3 (budget uatx board, 1 PCI, 1 x16 PCI-E, onboard LAN, VGA, Sound)
Gigabyte Geforce 210 (pretty good card can play GTA IV on Med settings >25FPS)
0.5TB hdd (seagate?)
about the cheapest PSU & Case combo I could find.
CRT & AT (w ps2 adapter) Keyboard and Ball mouse (FREE!)
Debian (lenny) with Winxp Dual boot

Fairly simple system but it was a replacement for a P4 system that died.

BTW THIS IS MY FIRST POST!