Wow thanks Cherub, that means a lot coming from you and your work.
I finally managed to get the tutorial up on my site.
http://www.yurialexander.com/tutorials/
Specificially the tutorial goes over how to get your high-res sculpt into maya while avoiding mayas .obj import quirks.
It goes over setting proper scene scale (which you need for accurate lighting, shading and effects), and then how to bake, assign, and configure a 32 bit floating point displacement map using zbrush, to give you the most accurate render results, making sure you don’t lose any detail in the transition between maya and zbrush.
I know this isn’t super advanced info, it’s mostly nuts and bolts stuff, but I do hope it helps someone.