Hi,
Not currently, but as soon as I find a customer interested in sponsoring this I'd be glad to work on it. This came up and was discussed a little in another thread here recently.
Its a complex feature to store all images and anything uploaded by the user in the db, there are a number of different issues to address to make that possible. The first is to get a consistent way across editors to upload files and browse images and other resources for easy linking so that there is a single codebase to maintain and all editors work the same. Currently only FCKeditor has this at all. Next is the actual storage and retrieval process plumbing, then integration across features like Shared File, Gallery, etc.
If your organization might have any interest please let me know joe dot audette at gmail dot com.
Best,
Joe