I decided to pay the 300 euros for the Enterprise Version of
MCFileManager - from Moxicode.
To clarify exactly what the purpose/implementation of this is: -
In an admin centre for a site I am working on, some of the input fields are for images/audio/other media files. I could have just done a simple file upload, but wanted to allow them to browse and preview existing files on the server and either select one of these, or alternatively upload new files and/or create new remote directories. The MCFileManager does all this perfectly and is seamlessly integrated into my admin system.