Now you've got me thinking about my dream list. This is just amphibs because altogether it would be way too long.

Neurergus sp. (kaiseri, strauchii, etc)
Psuedotriton ruber ruber
Dicamptodon sp.

Agalychnis moreletii
Dendrobates (Oophaga) pumilio "Blue Jeans", histrionicus, lehmanni
Cruziohyla sp.
Anotheca spinosa
Atelopus sp.
Theloderma sp.

The list really could go on forever, but thats the short end of it. Most of those species are available too, i'm just not able to get any of them right now (or in the near future for that matter).