<font color=blue>I'll start looking around for the controller</font color=blue>
Jim, you can certainly find them locally at a lot of auto parts stores, RV dealers, etc., but you might want to start shopping at <A target="_blank" HREF=http://www.brakecontroller.com/products.asp?cmd=StoreFront>this site</A> for comparison purposes. The Tekonsha Voyager is the one my brother recently installed on his Suburban. And of course you can find lots of other sites, too, for brake controllers.
And I never did it/w3tcompact/icons/frown.gif, and never blew a fuse, but Gordon's suggestion is certainly correct if you want to do it right.