Mods, please feel free to move this if it is on the incorrect section.
I am looking for a CMS system that can be utilized for the following:
Need to create a website for adoption and re-homing of animals. The most important criteria are that there should be facility for photos of the animal (preferably large) with details and description thereof.
The admin backend should possibly give me facility to assign username and passwords for different users who can update the details on the site (should and animal have undergone pre-home inspection or have been adopted), Changes should be reflected on the main page. Would also like to be able to create a DB of results of inspections and adoptive homes for assigned users only.
Is there any open source system out that that is relatively easy to adapt to fit the above requirements?

Typolight can do all of that, but if you never use it before, you will need a little time to learn how it works
another solution is ModX