Trarr.net uses a heavily modified modified WordPress 1.2.2 as content management system for a webcomic. All pages you see (but for the extra forum of course) are wordpress pages, inclusive the automatical language switching.
I've been working on this page for roughly six months now (on both, code and layout). There's still alot of content I'd like to add, like a contact page, an extra section (for wallpapers and stuff) and the news section on the current page; but the page itself is more or less finished now.
WordPress does surprisingly well as lightweight cms - I'm glad that I have found it. :D
So, what are you guys thinking? :)