Power Supply Question

This is unrelated to CNC, but you guys seem to know a lot about power
supplies. I am looking for a variable DC power supply capable of 3A and
0-200 Volts. Does anybody have a surplus one sitting around? Anybody know
where some plans would be to build one? Any help appreciated. What would
the cost of components be?

I need this for a titanium anodizing tank that I would like to build.

Thanks,

Daniel J. Statman, Statman Designs
www.statmandesigns.com