I personally love Django (http://www.djangoproject.com/) the python equivalent of RoR. I love the way it encourages me to architect my code well, rather than being encouraged to hack up every page (all too easy in PHP).
It was easy to set up, has great documentation and an active community, and lots of encouraging case studies.
It was easy to set up, has great documentation and an active community, and lots of encouraging case studies.