If you are looking for a really good deal for a power supply, consider the OCZ ZS Series 650W PSU, currently $65 thanks to a MIR at NewEgg.  The price will fool you as to the quality of the PSU, though don’t expect perfection at this price point.  The ZS series seems to be a mix of both good and bad, with good efficiency and stable power in all but one condition.  TechPowerUp did not like the low maximum operating temperature and would also like to see longer cabling.   Take a peek at it in their review, but you should probably only consider the PSU at the discount price, there are better alternatives at the full $90 price tag

"OCZ is very busy lately releasing new PSU models. Today we have the chance to test the OCZ ZS 650W. The main difference compared to the bigger ZS 750W, besides capacity, is the reduced number of available PCIe connectors, only two. Like all ZS units it has 80 PLUS Bronze efficiency, its OEM is Sirfa and it uses a non-modular cabling design."

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