In regard to my prior post I used Firebug to study the styles on this page:
http://www.w3.org/MarkUp/Guide/Style
which are excellent styles for documenting code development efforts. A problem with this approach is every time I change the style sheet or template the code must be updated in the container on each page. It is a bit tedious but will create a record of the efforts for future reference.
I suggest the MODx example site be simplified and include a hidden site development tutorial along these lines. It should help new users like me hit the ground running with much less wasted effort.