I've seen lots of people wanting to build a chilled liquid cooler, but they are not the easiest thing to do. They are a little bit on the difficult side, and are absolutely massive! But, if you got the money, a solution to all of our problems!
http://www.sidewindercomputers.com/swmc45thlich.html
I want one.
http://www.sidewindercomputers.com/swmc45thlich.html
I want one.