Hardware Extreme has just finished a comparison of two popular water-cooling radiators, the AquaCoil and the BigMama. A radiator is one of the most important parts of your water cooling set up and this comparison will help you decide between two of the big names. Here's a quote:
"After hearing about water-cooling being the best method in cooling your processor, I decided to see which radiator has the better results. As an avid fan of cooling, I really detest the loud noise of many fans in cases. My case use to have about 10 fans, which whenever I brought it to a LAN, people would think I drove up on the case because of the amount of fans."