Maybe you should patent and market that husband rack. Then you'll be able to afford your dream collection, LOL.
I know a lot of people use the CB-70s for adult balls, but I'm not sure if I'll be able to find them.
The CB-70 is my favorite box of this size. It's very sturdy and the inside is completely flat, making it easy to clean. I believe Office Depot or Office Max will order them for you and not charge shipping. Personally, I prefer to get my boxes from ReptileTubs.com - great guys, great company. I understand Vision also makes a version now that is even more durable.
I'm sure not all of these are "rack suitable" animals but for those that are I would like to be able to have plans on hand for when I'm ready to purchase:
White Lipped Pythons (black phase)
Papuan Pythons
Diamond Pythons (pure diamond ... not this 75% stuff...just not my taste)
Angolans
Dwarf Burmese
Bredli
I have friends who keep all of these species, except for Angolans. Unfortunately with these I think you're absolutely going to need cages for adults as I can't think of a box appropriate for any of them, save for the racks that Freedom Breeder sells. Again, except for Angolans which should do fine except for the largest females.
The Gold Phase White Lips might do okay in a CB-70, but I think the blacks get too big. These are my favorite python species. I used to keep a small group of the Golds.
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Current snakes:
0.0.1 Gonyosoma oxycephala - Java locale (green)
1.2 Gonyosoma oxycephala - Jave local (green)
2.2 Gonyosoma janseni - Seleyar locale (all black)
1.2 Gonyosoma janseni - Celebes locale (Black & Tan)