Off-line share files

Ok, I may be dreaming, but I seem to remember something about creating an off-line directory or file on DVD, and users are able to search these files and request a file be uploaded or placed in the on-line share folders. The owner of the file copies the file from whatever off-line storage medium and when the upload is complete removes the file from the share folder to await the next request.

Please tell me if this is possible and give any information you might have on how to do this and how you show the list of the off-line files.

Something also is in the mist of my brain, that you can have these off-line list or lists available for view by other users.

Please be kind, and no I am not smoking funny cigarettes. This is becoming more important every day as I am running out of space on my HDDs, and until I can get an NAS or RAID this would be a possible affordable solution.

Thanks All
Txslyguy