I am more or less in a similar boat to you. I'm a fresh out of Architecture school student, with a background of shooting photography throughout school as a serious hobby and made the jump from a 20D. Also just posted a topic here about trying to shed some light on hidden gems where I explained one thing I did to help with my auto focus feature which you can read if you'd like.
From what I know, however, is that this camera being as new as it is- you may have to wait a while before any actual manuals, in print or online pop up- as the only ones in the photography community that have had access to pre-production models may not be writers and teachers but actual users who may or may not post guidelines like this. From my basic understanding- this AF system borrows a lot/updates from the 7D system which has been out for more than long enough to have had some guides and books posted about it, so you might want to start looking there. I don't really know if there are any other cameras as closely related that have been out for awhile with a similar system to the Mark III.
Hopefully this helps out, and good luck with the search. Let me know if you find anything useful (I'm really busy the next few days and won't have the time to do any of the searching right away).
