If would be neat if you could integrate the wiki into the site, with matching style (just a simple HTML layout for the wiki plus control of the CSS). If we could do that, I would consider moving a whole open source project's site to this.
It is a wiki, if you treat it like one. That's what's so cool about it.
Two years ago, we moved the Philadelphia LUG website (http://phillylinux.org/) from a set of static HTML pages to a subversion repository. I dropped in a post-commit hook to update the DocumentRoot after each checkin, and the site instantly became the best wiki I've ever used. Revision history is handled by diff, and svn blame. Updates are made with your favorite $EDITOR. And, as an added bonus, you get to use real HTML rather than some silly wiki markup language. I love it.
One of the most important parts of being a wiki is having a low barrier to entry. Revision control systems (git even more so than svn or cvs) is a huge barrier to entry.
