samba - Mar 2010 - Samba overwrite move-create-delete vs in-place

Hi,

I have samba running on openSuSE with windows, linux and mac clients. To
save space we'd like to hardlink duplicate files to each other (typically
10M+ images). Unfortunately samba does an overwrite in place instead of
move-create-delete, so the file gets changed everywhere if it is replaced.

Typical changes are edits of documents in openoffice or saves of updated
images from gimp.

Is there any way to force samba to do overwrite as move-create-delete
instead of overwrite in-place?

Or is there a better solution to what I'm trying to do?

Thanks
David