It would be an awesome feature to be able to select avatars and profile images that way that things don't have to be double uploaded if they are uploaded to the gallery.

With this it would be awesome to have the option to "Only allow own images" or "Allow all" with a category option on whether the images can be used for avatars or profile headers.

Just a consideration for the future. These options could be done universally with things like the Blog and the calendar as well.

I think it be better to have your own area like a Avatar upload that is just for a user and not uploaded to gallery. Make it part of the core and not gallery.