EDIT- See the post by Slim below.
AMD Athlon® XP 2800+ Bare CPU W/ ECS N2U400-A Mainboard $99.99- http://shop4.outpost.com/product/4162413
AMD Sempron 2500+ Boxed Processor with Motherboard $69.99- http://shop4.outpost.com/product/4202624
Intel® P4 2.4AGHz (533 FSB) Box CPU W/ ECS 848P $ 109.99- http://www.outpost.com/entry?site=op:mf ... ku=3992328
Hitachi (IBM) 160GB UATA100 8MB Buffer Hard Drive $49.99 after rebates- http://shop4.outpost.com/product/3885187
TOSHIBA 8X DVD±RW INTERNAL DRIVE $59.99- http://shop4.outpost.com/product/4035892
SONY DRU540A $89.99- http://shop4.outpost.com/product/4085532
BTC 52x32x52x CDRW EIDE INTERNAL DRIVE $19.99 - http://shop4.outpost.com/product/3816157