I was browsing CNET.com's Web site and came across this interesting article. It is a "Weekend Project" tutorial on how to water-cool your PC. This is pretty hardcore, and being that I just finished building my PC, I'll let it run with stock cooling (stock HSF) for now. But for those who want to dabble with water-cooling, check out that tutorial. It's an interesting article that includes pictures and videos. Good luck on your water-cooling project!