I glommed all this together from mailing lists and documents listed below.
Linux Documentation Project
Godoy's Docbook Page
DocBook Install mini-HOWTO
DocBook: The Definitive Guide by Norman Walsh
Setup Instructions For A Coherent SGML/DocBook Environment
Standard Deviations from Norm: If You Can Name It, You Can Claim It! (Norm Walsh article)
A gentle guide to DocBook (IBM article)
Making PDF documents with DocBook (An incredibly helpful article)
OpenJade home
DocBook Technical Commitee
DocBook Home at Sourceforge
Jim Weller's sleepless notes
Title Bout: Jim v. Doctools
Using Doctools sgml