$800 on a P4 3.0Ghz w/ HT & 400FSB Was so expensive at the time as it was the first 3Ghz chip, had HT, which was very new, and newly upped FSB.
$380 on an Radeon 9800 Pro, same rig.
I have learned my lesson and since then, have not broken $150 on CPU, nor $150 on graphics since.
Also learned my lesson on 10k RPM drives, the higher density 7,200RPM drives that come out a year from then will blow them out of the water, just as yours start to make a high pitched whine. Awesome.
Posting from $700 rig ATM.
E7200 @ 3.65Ghz 403FSB
4Gb DDR2-800
HD4850
500Gb Seagate
500w PSU (Antec NeoHE)
Vista
~$150 on case/fans/AS5/HSF/cables etc. I like my comps now to look nice, sound quiet, and run cool. 3.65Ghz was a good compromise overclocking wise.