I used to maintain a wiki full of personal ideas using DokuWiki, but at some point just gave up with wiki syntax entirely. A few months ago when I was moving all of my sites and content over to a new server and trying to consolidate things as much as possible, I decided to import all of that old content into a WordPress install (which was actually a single site within the same Multi-site install that runs Dented Reality). I ended up writing the following super-rough script to just scrape the contents of the pages and throw them into WordPress. Scraping the pages meant that I could get the actual output of all plugins etc, and also get full links between pages.
#script
googlecl
Access/work with Google services via command line.
WP-Create
Nice shell script for creating a WordPress installation direct from SVN.
Bash shell scripts directory for Linux, FreeBSD, Solaris, UNIX
Bash shell scripts directory for Linux, FreeBSD, Solaris, UNIX
Good collection of bash scripts for handling all sorts of things automatically.