[CQ-Contest] best pc power supply to eliminate rfi?

[ww3s at zoominternet.net]

I know Dave, K6LL, recommends the Envision monitor as virtually noiseless. I bought 2 and they are quiet. Still noise though from the pc power supply, one extremely bad. Along the lines of Dave's suggestion, can anyone recommend a particular power supply to replace the existing one with? What should one look for in trying to find a "noiseless" pc power supply? 

73 Jamie WW3S