Designs for silent cooling - Where?

Hi people.

I'm looking for locations that have good designs for cooling simular to the water cooling items reviewed on tom's harware in the past.

I was mulling over different ideas and want to try building my own setup to max out my current system and squeeze all I can out of my Duron system I'll be assembling shortly.

To resolve issues encountered with the Koolance system tested in June, I was thinking of using seperate cooling lines from the waterblock for each of the cpu, vid card and power supply cooling plates. I was also considering using a non-electrically conductive liquid to transfer heat. (I remeber looking at a page a couple of years ago where a crazy user immersed his whole system in a styrofoam cooler filled with sub-zero temperature cooled mineral oil.) That way leaks would not pose a hazard. Finally, I was also considering using peltier elements to assist in the thermal transfer from the heat sources to the cooling plates.

What would be a good liquid to transfer the heat and remain non-electrically conductive? And what would be the best tubing and connectors to use that would not react with the transfer liquid?

I would love to chat with anyone else who has dabbled in water cooling.

Can't wait to throw out all 6 fans.