The more I think about it, the more I'm convinced in using the same structure used by the browser for the history page!
It provides a nice and well structured page, entries with a name and two others characteristics (date and address, but I'm going to use only one of them to store the complete path to the folders).
It is also easily scrollable and *I think* easy to customize (hide and show subfolders).
I need to study jquery now...
