I have two Oriental Firebellied Toads. One is green while the other is brown. I keep them in a standard ten gallon aquarium that's half land and half water. Below you can see lots of pictures, a few videos and some links to sites with more info.
The Cage
Here are my toads
Videos
(to play videos you need RealPlayer)
A Toad eating a cricket
A Toad Climbing
A Toad Swimming
Links
The Firebellied Toad Forum
Firebellied Toad World
An Awesome Care Sheet