Document Management Plugin

Does anyone know of a great document management plugin that will allow me to tailor access for an administrator to add and delete files, but will only allow other users to read and download files? I have found a few document management plugins, but they look like they require you to issue a user role to anyone who will access the system, and then everyone from a subscriber to an administrator can modify documents. Ideally I want to be able to keep the document management option off the menu for certain users, appear on the menu for others who can read or download, and then allow certain users to add and delete documents in the system. Any suggestions? Thanks.