ExtensionTech: A sometimes forgotten part to keeping a stable system is the power supply. Cheap cases almost always come with cheap power supplies. From what I've seen in my years of PC repair, a cheap PSU doesn't handle the need for power in today's demanding systems well. Sure, you may get away with running your old system on a cheap 300 watt PSU, but keep adding hard drives, CCFL's, Fans, and so on, and you'll probably run into problems one way or another. Continue on as I look at the new Vantec Ion SATA ready 400 watt PSU.