Module for cropping user picture immediately I'd like users to be able to crop their user pictures immediately. That means:

After selecting the image file, it gets uploaded immediately (as opposed to waiting for the user to submit the entire profile edit form) and some kind of overlay, div, etc. appears that allows the cropping to be done.

As far as I can tell, a module does not exist that provides this functionality. If I'm wrong, please direct me to the module I'm looking for. If I'm right that it doesn't exist, what tips would you offer? Is there a module that will help get me part of the way, i.e. immediate upload, and then I can implement the rest (like just the cropping)?
The best solution I found is to use the Imagefield Crop module. This does NOT work on profile pictures, so simply disable user pictures and then add an image field to the user account fields. It will work with that.