I used to think the same as you, that plants were extremely difficult to grow in terrariums. Now I know better, and they are very simple to grow if given some attention. Lighting is the main factor, a good fluorescent or two will easily grow most types of foliage, and grow bulbs help as well. The articles in REPTILES magazine are very good articles. The article about the greens, grays, and barkings was fairly good, but do not mix these species. As for orange-leggeds (P. hypochondrialis) in a jungle type naturalistic set-up, I don't recomend it, as they seem to like a little warmer and dryer conditions than say the Tiger-legged (P. tomopterna) or Red-eyes (A. callidryas). If you are talking about a blue phase green tree frog, I believe that Bob Mailloux at Sandfire Dragon Ranch ( http://www.sandfiredragonranch.com ) was working with these at one point, but I'd imagine extremely expensive. Have you thought about albino phase green tree frogs? I know that LLL reptiles ( http://www.lllreptile.com ) has them for around $35 which is not a bad price, they used to go for around $50. Lighting is rather cheap, I get under cabinet fixtures and bulbs for quarintine tanks from Wal-Mart for about $7, which is about as cheap as you can get. Then I add a $5 grow bulb usually. Any more questions, feel free to ask.
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CB Male P. sauvagei from Patrick Nabors
derekb15.tripod.com/tropicaltreasures
5.4.0 P. sauvagei
3.2.0 P. hypochondrialis
2.0.0 P. vaillanti
0.0.3 P. aurotaenia
2.2.0 H. argus
2.2.0 B. orientalis
0.0.9 S. pustulosa
0.0.1 M. laevigata
0.0.1 D. guineti
0.0.1 M. stelzneri
0.0.1 P. adspersus
1.0.0 T. horsefieldi