Asking for Suggestions on New Pets

As renovations continue to change the way I use my blogs, this one has become the place to discuss my pets. At present, I have two leopard geckos, one giant American millipede, two sliders, and a Mississippi map turtle. I have two empty terrariums at present, just waiting to be used. I'm leaning toward a gopher snake and a White's tree frog. What do you guys think?