I'm not sure what size the swamp cooler is, but it's not a huge room that they're in, and the swamp cooler does it's job well. It's also VERY cheap to operate and it basically runs all day long and only uses as much power as a fan and a little bit of water (maybe a gallon a day I dunno, it's on a water line). For the winter, there's just a meduim sized oil heater on a thermostat on the other side of the room, so basically it holds an even temperature year round in the room. The air circulation is both by the swamp cooler (blowing a cool breeze into the room) and by a fan on the other side of the room that swings side to side and keeps air flowing. The front and tops of the cages are screen and in between the cages is just a thin piece of masonite (thin sheet of wood). The total height of the whole rack is a little over 8 feet, making each cage just over 3 feet tall with about a foot inbetween the top and bottom rows and a foot on the bottom for lights and drains. The whole thing is also 8 feet long, making each cage 20 inches wide and 2 feet deep (front to back). It doesn't get too humid because the air here is pretty dry, so the swamp gets it up to like 60-70%. The biggest problem with a cage like this is that the doors take forever to make them work right and close nicely, and that crickets escape pretty easily. I cut everything as close as I could and sealed EVERY joint, but somehow someway, they still get out and have started taking over my garage. These cages are filled with panthers, with my pair of veileds being on the bottom left 2 cages. If I had to do it all over again, I would just buy screen cages and make them set up on a rack or something. The crickets escaping are making me mad and I'll probably be throwing this whole setup away in the next few months and starting over completely (besides the lights and fixtures- they were more expensive than everything else about it).
-Tyler Stewart