Buying a power supply

[PhrstBrn]

I'm looking to buy a power supply for the server I am building. The case I bought came with a busted power supply (I tested it with a volt meter). The case and PSU was only $40, so it wasn't too expensive or high quality. I bought the case from newegg.

 

 

 

 

 

 

 

From the reviews I heard it's a pretty crappy PSU, and the return shipping is most likely worth more than the power supply itself. :D

 

 

 

 

 

 

 

What do I need to look at when choosing a PSU? I don't want to spend a lot of money, but I don't want to buy something that's junk.