I have PHPNuke installed on one site I have, and my webhosting has a simple install for it available, but I started to dislike it when I had to alter things. So I was just looking round to see if people have any other preferences.
Since Toolman suggested phpWebSite I've had a look at that. Haven't looked at the underlying code and much customisation yet, but it installed easily and had quite a clean appearance. There was some info about combining it with phpBB that I'll also be looking into.