Since I'm a Graphic Designer I needed a plugin to help me share files with members privately depending on who is logged into the site. jSmallFib was easy to install, the installation instructions were a little daunting at first but as I read though it they became easy to understand. I had one quick question though so emailed their customer support and received a reply within a few days and Enrico was very very helpful!
This plugin works perfectly for me! AA++