Corsair Cool Watercooling Kit@ 2005/10/12
For those of you who are still apprehensive of letting water inside of your case, or worried about complexity of the kit, the COOL kit is very trustworthy and includes the hardware to keep it water tight. It isn't very complex, as long as you don't close-loop the system and burn out your pump and processor by connecting the hoses incorrectly.
The price of the whole kit, $175 at most places, isn't all that much for what you get. You also get a year warranty from Corsair and are going with a brand well known in the community. Performance is pretty good and it gives you a nice bump in speed which can be pushed father than I did while keeping your system cool and quiet. On a price/performance viewpoint the kit is excellent!