Coolmatt said:
water cooling DOES have a fan, just not over the CPU. The fan is located wherever you want to put it into your computer. The fan cools down the water much like a heatsink but still water is better for cooling
you do not need a fan in a water cooling setup in a non-overclocked system. a radiator will dissipate heat without the need for an additional fan.
Coolmatt said:
Water Cooling typically costs between $125-$200. It's expensive
only if you buy a pre-built system. it is not very hard at all to build one yourself. it doesn't take a scientist to figure out how to hook up a pump, reservior, waterblock, and tubes.
CMH said:
I wanna see how someone makes an efficient waterblock DIY
if you have a small piece of aluminum, and can drill 3 holes and tap 3 threads then it's pretty simple. as far as it's efficiency is concerned, that's debatable... but mine worked fine for my socketA system

anyways... waterblocks are cheap enough (about $25 USD) to just buy one premade.
I made my own rigs before comercial water coolers were available. I made my own water cooling setup (including the water block) using parts from ebay and home depot (hardware mega-store).
1. PUMP= minijet606 165GPH submersible pump ($7-ebay)
2. RESERVIOR= standard 4"x4" plastic electrical box ($5-home depot)
3. RADIATOR= black ice 120mm 3/8" fittings ($11-ebay)
4. TUBING= regular 3/8" ID (1/2" OD) tubing ($9-home depot)
5. WATERBLOCK= homemade (no monetary value)
6. HOSE CLAMPS= 8 small metal hose clamps @ 50¢ each ($4-home depot)
...as you can see, i made my system using standard parts for about $36 USD which is far cheaper than buying a $200 system