I have a 750 watt PS but typically the system case uses 150-250 watts. I overclocked the CPU turbo-mode only because most of the time my system idles below 2 GH

I have a 750 watt PS but typically the system case uses 150-250 watts. I overclocked the CPU turbo-mode only because most of the time my system idles below 2 GHz. Software development also has very low utilization of the video card. I am not familiar with Matrox video cards. I believe certain ATI cards support 3 monitors.