Keep in mind you can build a really simple tank that most dart frogs would be very happy in for less then a $100 easy. If you want a show stopper ..it will usually cost ya and certain things like supplements you cannot skimp on. You are over the hard part though, you found DB and all your questions can be answered. Lets start with that there are a good number of dart frog keepers in UT and even some in Vegas:
http://www.dendroboard.com/forum/groups/vegas-southern-utah-frog-group.html and lots of frogs to be found.
HD almost always has pothos, philodendron that are fine for a viv. Moss is great but think "leaf litter" as well. Backgrounds, foam, clay, cork. there are lots of choices, dig into those construction threads.
Last if you don't have frogs yet, think about what frogs you would like, and build your tank to particularly make that species happy. Which means- read a lot of threads!
Welcome and have fun
Sally
http://www.dendroboard.com/forum/groups/vegas-southern-utah-frog-group.html and lots of frogs to be found.
HD almost always has pothos, philodendron that are fine for a viv. Moss is great but think "leaf litter" as well. Backgrounds, foam, clay, cork. there are lots of choices, dig into those construction threads.
Last if you don't have frogs yet, think about what frogs you would like, and build your tank to particularly make that species happy. Which means- read a lot of threads!
Welcome and have fun
Sally