Awesome! I've been wanting a Dwarf Caiman for years, but need to wait until I can be sure I'll stay in the same spot for more than a few years. They're wonderful animals, if a bit intensive and costly in terms of care.

If you haven't found it yet, this is IMHO the best resource on crocodilian care: Crocodilian Captive Care FAQ (Caiman, Alligator, Crocodile)

Also, there's a trick I know that you might find useful. Once you get the new tank set up with a nice big filter (my favorite is the Eheim 2217), get some small goldfish and keep them in there for a while before putting the caiman in. This gives time and nutrients for bacteria to colonize the filter, so that once you add the caiman, the filter will be ready to help deal with the extra waste. Plus, you can just leave the goldfish in - at worst, they'll give the caiman a snack, and at best, they'll serve as a "canary in the coal mine" to detect water quality problems before they can hurt the caiman.