This construction was finished in January 2002 and ran for two years until the
pump died (no, the system did not go up in smoke ;).
Differences to the new system are:
The radiator had one winding more. It was severe overkill for
the old system, which was only a P2-celeron, not a P4.
And the one spiral really didn't look that good. ;)
The pump was twice as strong. Also severe overkill. On the bright side,
it was way simpler to get the air out of the system.
I used silicone hoses, not PVC ones. They were way more flexible
(and thus simpler to process), but the water was diffusing through them, so
I had to refill the system from time to time.
The cooling "blocks" were just thin pipes soldered into sliced thick
pipes. For the lower power concentration of the old system this was sufficient,
but I would not want to trust it to cool a P4. Also, with the PVC hoses
I would never be able to do the connection magic I did with the silicone ones,
so the new coolers had to have more "defined" outlets.
A definite downside of the old system was the inadequate (vibrant) mounting of
the hard drive (well, it was cooled, but after all, the end goal was silence).