WordCamp ABQ presentation: Build a powerful CMS with custom fields and custom post types
Please note that there is a newer, updated version of this information, presented at WordCamp Albuquerque 2012.
Slides from my presentation at WordCamp Albuquerque, Sep. 17, 2011. Also includes info about modifying Tiny MCE editor to make it more useful (and less dangerous).
The PDF is downloadable on Slideshare (link above slides and in the lower left of the control bar.)