you should all check out Melissa Kaplan's site, one of the best documented I have seen. Its at : http://www.anapsid.org/mainplants.html

Also, be aware that commercially grown tropical plants have been treated over and over with a variety of nasty fungicides and pesticides. Some of these may affect reptiles, but I can only find data on frog toxicity. Even here in Caliornia, there are no organicly grown houseplants.