I decided to go ahead and get my GTP an adult enclosure. I know it is a little premature, but after he about bit me in the face while I was trying to clean his 6 quart tub, I decided it was time. The cage is from PVCCages.com, and I could not be happier with it. It is a 2x2x2. He also seems pretty pleased. Once I put him in for the first time, he went right up to his perches. He has not struck at me once since putting him in. Let me know what you think.
(sorry for the dark pic)