Ya, I would give them access to view files in a set folder (website) then let them upload files to another set folder (website/uploads).
It would much easier to keep track of my viewers, and if I wanted to "upgrade" certain user's permissions, it would be a snap.
And, I would be able to get some kind of newsletter sent out to all my users.
Plus, it would open up the possibility of making the web browser based games. I've seen some people around here talking about that.
I had a lot of thoughts about this and what I would do if I could get it to work, but right now I'm pretty blank. Heh, it's too late for me to think.
If your considering to work on implementing it, it would help me a bunch.
Good luck on it.
PS.
I really like this program, by the way. It's help me out a TON when I have a large file I want to share. I can access my music library from my PSP at school, so I don't have to clutter up my memory sticks with music. I've been working on a website, and I've been working on some games for the PSP and this is the perfect solution to give people access to the games, fast and easy.
Other than the user registration, I would say this thing has everything I could ask for. (Except
maybe server side scripting support)