project suggestions ?

Hello, I am about to start writing a new project in PHP, and before I start reinventing the wheel (or, rather, the multiple wheels, bells and whistles which this project requires), I wanted to find out if there is an existing project similar to this which I can use for inspiration/borrowing code. I've looked on www.php.net/projects.php3, and some of them are similar, but need multiple adjustments, and I don't feel like gunzip-ing and looking through every one of them. Anyway, here's what the project is supposed to do, briefly: 1. Admin:Manage group/user time allocations on a large computing network. An administrator should be able to add/delete CPU time allocated to every group, copy "left-over" time from previous sessions, change passwords, add users etc. 2. Group manager should be able to view how much time his group has, add/update/delete users "attached" to his group (mostly address information), *maybe* change user's passwords. 3. Support interface: should something go wrong, telephone support people should be able to log in and change a particular user's info/password. Obviously, this would require an authentication mechanism which would identify a user as belogning to one of the three categories and give him the appropriate privileges. The database is Oracle 8. I've got PHP 3.0.11 and PHPLIB installed on my Solaris box with Apache as Web server. Thanks for you suggestions ! Mikhail