[Skulemate]

While I think you have a point with your lightbulb argument (thankfully I pay a flat rate for my power) you'd do well to brush up on some of the thermodynamics you've taken. While I am nowhere near as well versed on these things as some others are, I've learned that the convection that transfers the heat from our metal blocks to the water is highly dependent on the velocity of the fluid, among other things. And since flowrate and velocity are related, I'd say that you're blowing smoke on this one. If you want a better reply than this you can turn to someone like Dave (myv65) or even Bill... though he'll likely send you to Google. In any case, these forums, along with Dave's good articles at AMDMB can help dispell this and other watercooling myths.