Vivariums?

My wife and I have been thinking of setting up some sort of viv for our leopards lately. We have had success with our tank for our Tokay geckos, and love the way they look and how happy our little guys look in them. I was wondering if anyone here has had any success in making vivs for leopard geckos, and if so what pants/etc you have had the most success with.

Since Leo's are native to desert regions my thought would be if you wanted a natural viv it would be best to duplicate where they are from, which would mean rocks, dirt, branches, etc, not sure if you would have much success growing plants in there.