A Hovering Region?

Hi everyone!

I've been working with Drupal for few months now, and been quite amazed of the versatility of it. After five website projects I've noticed one thing that keeps bugging me. The admin menus are always in the way of wide content! I usually have my primary navigation menus converted to images in the website and many times I don't have extra space for the admin menu at all. So...

I'd love to see a module/region/block/whatever which adds the ability to add admin-navigation, or other block into an AJAX powered(perhaps), hovering, moveable region which appears to authenticated users.

I didn't find anyhing yet from the current modules. Any ideas, if there's something like this available? It'd be great to see something like this in drupal.