slobbering farting bulldog. LOL!!! I am afraid to ask its name!?
Welcome to cham world, glad you posted! Yeah, chams are cute when small, and then just weird as they grow up!lol! I am looking forward to a new (3-4month) little fella myself in a couple months 
Vary the diet as much as he will take. You will find out his favorites, though that may change over time. As Will said, silkworms are yummy, but can be pricey if just feeding them off. Franky, with all of your animals you might want to breed them. But if just to try I would not order any more than 25 to start.
You do realize that cham's requirements (humidity, temps, etc.) are different from other lizards, but sounds like you have a good variety of habitats - we would all love to see some pics. We do not limit it to cham pics only 
Feel free to ask questions, this is one of the best places for cham info on the 'net!
lele
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Chameleon Help & Resource Info
0.1 Veiled Chameleon - Luna. She's now hanging from her big jungle gym in the sky
1.0 Beardie - Darwin
0.2 felines - Kyndra and Lita
0.1 African Clawed Frog - Skipper
0.1 Mad. Hissers and she is on the loose!
0.1 Chilean Rose Hair Tarantula - Rosa Leigh
0.1 Goliath Bird-Eater Tarantula - Natasha
?.? Pinktoe Tarantula - no name yet