You do realize that w/ that question you are going to get intimating that you are the spawn of satan, don't you?
However, this is not one of those responses. My mixed species tank is 1/3 water 2/3 land area w/ a waterfall. It is well planted and has lots of arboreal space. In it I have a green anole, a green tree and a golden tree frog, and a handfull of zebra danios down in the water. As you can see, not a single one of them are exiting in and of themselves but taken as a whole the set-up is very nice.
Now a word of caution - Be very careful of what you intermingle. I won't say that it is as anathema as many will portray it, but you do want to be careful when setting things up. Make sure that each individual has their environmental conditions met, that each individual is COMPLETELY disease free BEFORE mixing them, and don't crowd anybody. But then you're probably smart enough to have already thought of that.
Post us when you get it together.
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Russ