Listings CMS

With regards to the CMS we are looking for, it is a little experiment I am going to try out. Basically we are thinking of putting together something along the lines of a good pub guide and having sales staff selling listings on the website. I would like so that anyone logging onto the site can search via county or area and a list of bars or pubs in that area will be generated whom have listings on the site.

I would like there to be 2 or possibly 3 different templates that can be uploaded by ourselves as and when we get listings on board i.e

standard listing
premium listing
gold listing.

The standard listing will have a set number of data fields (basic info) with the premium listing having a few extra fields to include a photograph upload section and the gold listing to have a full review with several photos.

We would like to do all the design work on the site, and would need to be able to update both the look and the data held within the site on a regular basis.