You may want to look into Joomla (http://www.joomla.org/) or Mambo (http://www.mamboserver.com/). You also may want to email the administrator of http://philosophy.nu, which is running some type of script that has exactly what your looking for.
Thanks everyone for the positive feedback! 🙂 🙂
You can try Lazyest Gallery: http://lazyest.keytwo.net/
