ok i know you have been asked about all types of power supply but which one of these is the better deal
Ultra / X-Connect V-Series ( XVS) / 600-Watt / ATX / 120mm Fan / 20/24-Pin / Modular Power Supply
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2974503&CatId=1483
or
XCLIO GOODPOWER 500W ATX 500W Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817189005
Ultra / X-Connect V-Series ( XVS) / 600-Watt / ATX / 120mm Fan / 20/24-Pin / Modular Power Supply
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2974503&CatId=1483
or
XCLIO GOODPOWER 500W ATX 500W Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817189005