Need idea for a web framework for NLS site

I'm looking for suggestions for a new/better web framework to run the 
NLS web site <http://pgtranslation.projects.postgresql.org/>.  It's 
currently using "DocBook website", which is crufty and has all kinds of 
weird XML dependencies.  I have tried to rewrite it using Ikiwiki, but 
that also has some very particular weirdnesses that annoyed me very much.

I don't necessarily want to change the layout or contents of the web 
site at all, but I would like to have a toolkit that has less overhead.

Requirements are roughly:

* Perfect and flawless table support is essential.  The page 
<http://pgtranslation.projects.postgresql.org/status.html> is pretty 
much the core of the service, so it must work well.  I currently create 
HTML tables using a script and include them, but pretty much every 
toolkit has problems in this area.  I am not attached to the HTML 
markup, however.

* Low-tech, standard tools available through FreeBSD ports collection, 
or whatever the sysadmins want to deal with.

* PostgreSQL-themable.

* Preferrably understandable and maintainable by more than one person.

Recommendations would be greatly appreciated.