Here's mine, seemingly nicked straight from FHS:
/home/$USER/www/$PROJECT: /codebase /bin // anything with a shebang in /etc // config files /htdocs // document root /l
Everything in /codebase is under version control.
All apps are served from respective home directories. Each developer has their own local Bind zone, their own httpd.conf (with a correctly configured sudo so they can edit it themselves) and each application has a single global settings file that can work out the user running the code so the paths are the same and it should Just Work in a multiple developer environment.