graeme_p - 9:33 am on Feb 6, 2012 (gmt 0)
I have been looking at this myself.
Have you looked at Hyde [ringce.com]? Static site generation, should be easy to develop on (if you know Python), nice (Django) template system, it supports Textile and Markdown (not WYSIWIG but easy).
Are they really going to learn to use SVN?
What is the objection to a dynamic system? That you require some approval before the writers put stuff on the live site.
I think your best bet is to write a dynamic system that has some sort of editor approval functionality, so that a "responsible person" can check it before it appears on the live site.
Alternatively, have an in-house dynamic system, and a static mirror on the live site. Easy.