At my company we have a group of 8 web developers for our business web site (entirely written in PHP, but that shouldn\'t matter). Everyone in the group is working on differ
Naturally check out SVN for the repository, Trac to track things, and Apache Ant to deploy.
The basic process is managing in Subversion, tracking the repositroy and developers in Trac and using Ant deployment scripts to push your site out with the settings needed. Ant allows you to easily deploy a project to a specific location. (Dev/test/prod) etc.