I would have to recommend Document Exchange from Bring2mind.

http://demo.bring2mind.net/

Ventrian File Links is a great and simple module, but it may not do what you need.  You can use it to upload a bunch of files to a folder and display them with  a template that you design.  But you do not get an opprotunity describe the files so you would need to rely on a good naming convention in regards to your files and folders.

You could use Ventrian News Articles for this.  It is great because you can attach files to the articles you add and notes about them.  You can have unlimited authors and categories and your notes can be in more than one category.  You can search the files using a search box or find them by category, author or date.  You would need to get creative with the templates but once the templates are set up, you could have an awesome application.  You could even turn on comments and ratings for each article.  Also included is a module that will generate your PDF files from the articles you add.

You could also use Ventrian Property Agent for this task.  You can set up custom fields and have categories and authors, search, comments, maps and a whole range of cool things.  The work would be in setting up the templates but you are limited only by your imagination.  You can only assign one category to each article though.