View source for Check-in Check-out Asset Tracker

We are looking to create an asset tracking system to help track information technology resources commonly found in institutions.  This includes both physical assets like a computer or camera as well as things such as software licenses.  A check-in and check-out system is key for this project as well as auditing capabilities of inventory.  Our hopes are that this application will be able to be used in a number of different environments other then just ours.  This project is starting from scratch but we are willing to look at customizing existing applications.

Specifically we're looking to 
* Create a flexible and expandable database with a web front end.
* Allow for users to reserve resources.
* Ability to work with LDAP for populating users and access control.  This will give the application the ability to work in a number of different enterprise environments.
* Allow administrators to run reports to help indicate things such as warranty or license expiration as well as who a resource is allocated to.

We have an eye towards developing this application in Rails but, as we are starting fresh we are open to your ideas.