Thanks, I documented the setup at the bottom of this thread:
They are indeed Happy Trail boxes, Tetons, mounted using their kit to a set of Norman Hyde Rails. I love the boxes. The rear rack is a Renntec.
In retrospect it probably would have been simpler to shell out the extra $$$ for the Hepco & Becker rack and side rails, since you can see I had to go through some hoops to get the NH to play nice with the Renntec. And in the end it gave me no trouble, but I still feel that the NH setup is a little weak for the load I put on it. I think I measured 32-ish lbs a side.