WP File Management – user specific folders

Hi guys!

The thing is – im making a site for a recording company. They make digital recordings and then they want to let their clients download it when they need to. Up until now he was doing it with regular FTP, in fileZilla (create user, upload files to a user’s folder, set rights etc), but now we’re making a new WP based site and want to integrate a solution inside the Dashboard – so no external software is needed.
(I don’t care if the users will be ftp users of WP users, or anything else)

So, in short, is there a plug in that will help a blog admin to upload large files (zips,100MB+ ) and let only a specific user download them.
Or in other words – set user-specific folder access.

I tried:

* wp-filebase – no good – it has no user-level rights management.
* wp fileman – no user rights
* myFtp – no user rights… again…

Any ideas?
Much appreciated
– Mark