cpu cooler = Maze3 waterblock from dangerden.com
ram pc3200 512MB Micron
PSU = 450 Watt Sparkle -- Good PSU, Quiet, cheap, stable rock solid voltages
water pump Eheim
Heatercore - All copper 14" x 6" x 2" from a Buick Skylark ($20 @ Advanced Auto Parts my favorite part)