If you're going down that route, then maybe Drupal might work out too? It needs a RDBMS, and is used for some pretty large scale stuff here and there. It's got some OO, but isn't hell-bent on it (yet), and is relatively easy to pick up (after an initial 'hump'). It means you can still use your front end skillz, you might still get some Perl time if people have some backendy stuff to do, but PHP isn't hard to learn from a Perl background.
That said, almost every place I've ever worked in has some surprisingly large and important Perl knocking about (even if the 'official' language has moved to to Python or Ruby or something). There's still perl-with-sysadmin work around, although maybe people aren't quite admitting it on the job spec.