as far as the graphics card goes, i'm limited because the mobo only supports pci not pci-e.
and did you mean that the power cord was not compatible or that the power supply would not work with my computer
To be extremely clear, what everyone is going to say on this forum is.
DO NOT BUY A CHEAP OFF BRAND PSU.
With that said, the brands you listed are very cheap for a reason. You honestly don't know if its going to explode or short something or take other things with it when it dies, which it most definitely will do.
, which is roughly twice your price range, but it sure will last a lot longer and keep your components safer.
What obsidian said was you should look for the following 3 features: a six pin pci express connector, voltage protection, and active pfc.
The last power supply cord you have will almost surely work with your new one, but I don't really see a point since I'm not sure which power supply doesn't come with a cord?