One of the most important PC components is the power supply.
Without a good quality power supply putting out enough clean power to power
your high end video card and quad core CPU, you would be stuck with a pile of
useless parts. Today's power supply's have a lot of shoes to fill. They must
put out enough power to meet any demand you will be able to throw at it, now
and with future upgrades. All of the power must be clean and stable power, you
wouldn't want something to fry because you didn't give it clean enough power.
Then most recently people have been concerned about noise and aesthetics, the
fans on power supply's keep getting larger and quieter and you see things like
windows and racing stripes on "gaming" power supply's. This has also
lead to the popularity or modular cabling, to me one of the best ideas to come
to power supplies in years! Seasonic, one of our lans sponsors has provided us
with their M12 700 watt power supply to check out. @ LanOC.org