Another alternative used quite successfully in the Linux Documentation
Project is SGML. SGML Converters exist for HTML, RTF, ASCII, groff/troff
and LaTeX. Once the file is in LaTeX you can convert to DVI and to
Postscript. SGML looks similar to HTML (actually HTML syntax was
derived from SGML). Unix conversion tools are available at:

 ftp://sunsite.unc.edu/pub/Linux/utils/text/sgml-tools-0.99.0.tar.gz

Write it in SGML and everyone can have what they want.

Tomy