I have been using a Nikon D-70 outfit with an SB-600 flash with a Stofen cover and I am very saitsfied. I use an RB 67 Pro for film, I think I just found the answer to only using one camera. It is a Leaf Digital back. It will work on Many medium format cameras. The only problem is the price ! Wow. Around 30k. Maybe it will come down, he he.
Here is the link to the sight for those who are curious.
http://www.leaf-photography.com/page...s/Aptus75.aspx
Note, the images in my portfolio are not with either of the camers lilsted above. They are old photos. New images soon.