makeitcrispy:
well, the diablotek and Power Up are junk power supplies. The Corsair is a good power supply, but it is a bit pricey.
Currently, you can get the Antec Basiq 500watt power supply for $30.
That's a decent budget power supply, although it does have a loud fan. It does have a 6-pin PCI connector.
Or, a better choice would be the OCZ StealthXStream 600watt power supply is currently on sale for $39 at newegg.com, with free shipping(use coupon code EMCAJAFBE).
That's a high quality power supply that has more than enough power to
run your computer, even if you were to overclock. That power supply was
also reviewed at HardwareSecrets, with very positive results.
In fact, they found that the OCZ StealthXStream 600watt power supply
was actually capable of putting out a full 728watts, amazingly enough.
I'd recommend getting one of those soon, before the sale expires or the
price goes up. This is the best price I've ever seen for this power supply, so definitely get this now.