Reptile is a web server made in Python. It supports server side scripting with "Embedded Python", PHP, and CGI scripts.
It has an integrated HTML/XML validator that checks the pages before publication and others handy features.
LivingPages is a really easy to use web development environment based on Apache, PHP and MySQL. It provides you a GUI to manage your webserver and a lot of utilities that will make managing your web projects an incredibly easy task.