Stay Cool

High-performance systems usually have high-performance cooling. The stock CPU fan that shipped with your PC probably doesn't provide the cooling power that overclocking requires. Fan-based CPU coolers cost less than $30 online, but I recommend spending a bit more for one from a top-flight vendor such as Thermaltake or Zalman. In fact, Zalman's $50 CNPS9500 cooler turned my noisy and red-hot overclocked Pentium D box into a cool, purring kitty cat.

Many gamers and power users opt for superefficient liquid-based PC cooling systems--smaller versions of the radiator that keeps your car from overheating. The devices include a simple pump, tubing, a radiator, and a "heat block" that draws heat from the CPU. One I recommend is Thermaltake's $100 BigWater SE.

If the thought of water coursing just millimeters from your PC's expensive circuitry makes you nervous, avoid the worry and install Vigor Gaming's $130 Monsoon II Lite cooler. The waterless Monsoon II provides excellent cooling by combining a fan with a powerful Peltier cooler; the device is easy to install, and it takes up less space inside your case than many high-powered CPU cooling fans do.