Lack of Managed DirectX Tutorials

I spent some time today looking for Managed DirectX tutorials, and haven't found a whole lot. So far, the best set I've found is at pluralsight.com. A lot of the tutorials out there, Managed or otherwise, use 3rd-party libraries to "assist" with the process. But those turn me off pretty quickly. I want to understand the inner workings of something, not just get to a finished product. The DigiPen series lost its appeal when I realized that it was teaching how to code around an existing engine. I may just start reading through the MSDN material instead.