I've written a Wiki2Html transformer available in our main CVS under the wiki2html module. I've always been a text based guy and HTML, well, just plain sucks. Andy Oliver introduced me to WIKI format when we installed our WIKI and now I want to use it for everything so Wiki2Html was born.
To checkout follow directions at SourceForge to get access to our cvs. The cvs command to check out would be
cvs checkout wiki2html
Wiki2Html yourWikiFile.wiki > yourHtmlFile.html
It mostly functional, but I haven't implemented footnote support. If anybody has a patch, please send to me. Also, there is one bug that the .wiki file must be terminated with a newline.