Managing Gallery Images – new features

On the Gallery Page:

1. can we use drag and drop to re-order the pictures?
2. can there be a set of checkboxes to allow deletion of images. It’s VERY tedious to delete all the images in a gallery.
3. Can those checkboxes also be used to mass add images to the post?

4. I found a great slideshow jquery script could something like that be added to the “gallery tab” ?

Media Library Tab
1. This should probably have additional features like #2 & #3 above.

Other
If I change the image sizes is there a way to rebuild all the images? or a select set of images ? (such as with the proposed check boxes sugggested above).