The Kingwin Stryker 500 W is an amazing little PSU. It is one of the few models that offers 80PLUS Platinum efficiency, which means well over 90%, even at low load. In addition to that the power supply is completely fanless, emitting no noise at all - great for a quiet office PC or media PC system.
You do software updates to get the most from favourite programs right? Updating a motherboard BIOS can in a timely manner is also critical. The guide to Flashing a Motherboard BIOS spells out the often complicated steps in plain english. PCSTATS Tips