I have a file hosting website running, but its basic, and I need some features added. In order for you to win, you must list some features you will put in. They must be useful, and cool.

What I need done:
(Check http://www.zishares.com for an idea of the site)

-Option to add multiple files at a time.
-Combine the file uploader, and image uploader into one.
-Preview the file. So if its an image, option to post on forums, make thumbnail ect. If its a .mp3 option to play some of it.

-Added security both on site, and admin panel

POST THE FEATURES YOU WILL ADD AS WELL>