It would seem that I don't fully understand the way BorderContainer is suppose to function. I've boiled down my code to what I hope is a short enough example. First the code, then I'll note the issues I am having with this test case.
@import "dojo/dijit/themes/tundra/tundra.css";
@import "dojo/dojo/resources/dojo.css";
dojo.require("dojo.parser");
dojo.require("dijit.layout.ContentPane");
