Cooling components is critical.  This is why when you buy a processor it comes with a CPU heatsink and fan.  Heat wears components out faster and reduces their reliability.  The first thing I do when working with a new machine is replace the stock heatsink with an aftermarket one.  They are more efficient and depending on the configuration, could even be quieter. Cooler Master has sent us a CPU cooler that caught my attention.  The GeminII S524 is a square shaped cooler that instead of sitting directly over the CPU itself extends over one side to cool additional components.  I have always been a big fan of aftermarket CPU coolers with two fans in a push/pull configuration.  Typically CPU coolers with a single fan don’t seem to work as well, and I am unsure of how the overhang will impact the general airflow in the case itself.