How to connect Playstation 3 to a Viewsonic PC Monitor?

The playstation 3 only has 2 outs, hdmi out and the regular ps3 out, which can go to anything you buy cable for. If you say your monitor has DVI, then you could get an HDMI to DVI, if there is even such a thing. Your standard ps3 out cables are composite, or yellow red-white. You could get a converter to go from composite to VGA, which is your standard 15 pin.