Here is a link to my Mom's CM site. They have a great new product called Power Sort. This link is for the large size, but they also have a mini one that you can see here. They sell extra dividers. The price is a little hefty ($35) but the large box holds 2,400 5x7 photos. I like the fact that it holds 5x7 for those extra large cards. Also, you can remove the compartments to keep the large square cards in an extra big section. The mini power sort holds 600 photos and only costs $11. My Mom offers good shipping prices, and a decent discount if you tell her Heidi sent you. And a super extra plus, the black plastic is intended to keep light out to avoid fading.
Oops...forgot the link.
http://www.creativememories.com/Prod...75484&igid=968