When power supplies say P4 or Athlon 64 or X2 ready, it doesn't mean theres something specialy done to it to make it work. In fact they only put it on the box to make them sell when in reality any power supply will work with any setup so long as it has the proper P1 connection (20 pin/20+4/24 Pin connection) The proper wattage, the proper connections such as PCIE Connectors and SATA Connectors if you don't have the adapters for said components.
deathawk: Sure, Cheap is great if you don't want the following.
Reliability
Future upgradability
Preformence
Im pretty sure you will replace a cheap PSU a **** more often then you will replace any quality Power supply.
But its not my money so buy what you want.