http://www.klubertanz.com/ These folks have been in business supplying rabbit cages, supplies for more than 50years now. They keep their prices down, and quality up. Since they're based in Wisconsin, they can often beat shipping prices from the California or Florida type places, too.

Anyone else have a favorite?

http://www.bassequipment.com/default.aspx

and I can't find it right now...but there's a site that has the word "bunny" in it that sells EXCELLENT crocks. They latch onto the bottom of the cage so the rabbits can flip them. Excellent for does that want to dig out their feeders because they are hormonal.

I think you're referring to http://www.bunnyrabbit.com, and I love their twist crocks too!

Bass Equipment is my favorite also!

woodyswabbits.com
local cage manufacturer

I got my cages from Bass, but if I had known about Woody's Wabbits, I'd have gotten them there. They use 14g. wire for the floors, while Bass uses 16g. (Something like that. Woody's are heavier.)

http://www.grandviewrabbitry.com/

Not only does he have everything we need he is a wealth of information as well. We get our cages unassembled and put them together when we get home.