250watts! thats it well what about ati 5570 it only consumes 20watts MAXIMUM.But i were you i did have gone for a PSU upgrade and cabinet first.Well its your choice and hey make sure that the PSU isn;t generic.But why don't you spend half the money on a good PSU and cabinet and save a little more and go with an ATI graphics card like ati 4670.ITs your call.