OS X and Dropbox- Is there a "mobile-like" App out there?

Dropbox on you phone lets you see all your files and download "on-demand". On desktop OSs Dropbox downloads either all your file from a folder or you don't see that folder at all.

I currently have many files on Dropbox that I don't sync with my MacBook, but I don't like going through them in the browser and I would like to have easy and quick access to all my Dropbox files. Is there an app that lets you see all your dropbox-files and download them hassle-free on OS X?