Lightware MF1420 multiformat bag. This bag has the dividers already cut but if you really do not like the way they are - you can purchase a complete set of new ones for 50 dollars from many photo stores. These bags are over 335 new. Mine is in 9++ condition. $265 shipped.
I also have a Lightware Z300. This bag was used to house my canon 400DO, which I have sold. 145 dollars shipped