I'm planning to move a site from mediawiki to django-cms. It has around 150 pages and a similar number of embedded images.
The question is how to do it with minimal effort. There are several issues:
First reaction - do it manually. 150 pages is not much and you can certainly do it in one working day (probably less) - which is about the same time it will take you to find and test an automated solution.
I've moved a wiki to another format and found I got a long way with just find and replace in Notepad!