Really hard to find grasshoppers for sale online most everyone uses wild caught in pesticide free areas. You can get Silkworms form Costalsilkworms.com or I see you are in Dallas I have a bunch if you want to make the drive to Mansfield to get them.
Take in consideration when your lights come on, I like to give them 30 minutes at least after they wake up before they get blasted, lol. Then the last one goes off 2 hours before lights out to make sure everything is all dried up. Each person will be different though based on humidity level...
This is the one I use,
http://www.filtersfast.com/P-Crane-Ultrasonic-Cool-Mist-Humidifier-Elephant.asp?gclid=CPfFyMqbj7kCFSlo7AodaGYASw
I just remove the elephant head from the top and you will see about a 1" round hole. I then insert a Straight piece of PVC pipe to the top of the cage and then...
Like Reptoman said Feeders are great to get at the shows. It allows you try all sorts of new insects and you save the huge shipping amounts you would normally pay. There is almost always someone there selling crickets and that alone will save you.
Let me just applaud you for doing so much research before hand and then doubling checking with the forum to make sure you have everything. You are obviously going to be a fantastic chameleon keeper!
A Ficus would also go great with that mix of trees.