We've had some issues with Text::WikiFormat in the last few months and it doesn't seem to get updated very often. As I commented during last weekend's meetup, I'd like to replace it. HTML::WikiConverter looks like a good possibility:
http://search.cpan.org/~diberri/HTML-WikiConverter-0.61/
It allows custom dialects to be implemented easily, so we wouldn't have to worry much about our specific syntax (which is pretty much a UseModWiki subset anyway).
Thoughts?