I did a greatstuff background for one. Seemed like a great idea until I watched the crickets run up the wall and just hang out. As far as plants, made a few "pots" out of great stuff and covered them in eco earth so they can't wreck them like the pothos we had in there Haven't planted anything yet though. I wouldn't mind doing something a little more elaborate in the future.
I actually found this on youtube yesterday. It looks nice, but it doesn't look like the frogs can burrow in whatever they are sitting in.
http://www.youtube.com/watch?feature...&v=YlImce_uDJA