Wow--you've got the Cadillac of tanks! I've got that tank for my day geckoes. Some things to note about it: there's vent holes on the sides and back which may need to be modified(screening material) if you use it for pdfs as the slots would allow fruitflies to escape. The holes also are fairly low (~5") off the bottom so they may be covered over with substrate--the tank should have come with caps to cover these holes. The height should allow a good selection of plants to be used. Check out the gallery of this site--lots of talented guys/gals here when designing terrariums.
Scott