Hi Mike,
I totally agree with you - the only resource I came across was the AWAI design course - I cannot say to what level it goes. Although based on other AWAI content, I imagine it will be worth checking out.
My experiences with design related resources - everyone seems to assume you only have Pages / MS Word. And that you still need to learn how to open and save a document.
I'm on the other end of the spectrum - I am a writer, but my current projects require me to design too.
I've found few ordinary designers understand DM design. And I'm not going to attempt converting, sometimes stubborn designers to the DM mindset. It is just quicker working with some templates I've designed....