Portioned Disk space for each user... sorta

[eckels2]

I need vbulletin to be able to do this:

When a member joins, they are given, say 5mb of disk space that they can use on the server. They'd be able to upload to it, to share files with others... Each member would be limited to 5mb.

If they want more, they'd have to pay for more.

There would also be a need for a member space control panel for the user, so they can upload and download, and basically control what they have in their server space.

Is something like this currently possible with an existing hack? or, is there something like it that I may be able to start working off of it?

A purchase of a vB for me, kinda depends on this Thanks!