FIRST, welcome to dendroboard.com! You picked a REAL neat hobby to get into.
The viv you picked (Exo Terra) is a great viv. My son and I have six of them now in all different sizes. You might consider adding a piece of glass to fit on the top to help keep the humidity up for poison dart frogs (PFD's).
As far as which PDF to start out with I'd say most any of the Tincs are a good choice. I would say don't worry about breeding yet, just worry about getting your feet wet by keeping them and all their needs (temps, humidity, fruit flies, etc...).
As side from keep the glass clean that's about it. There's no real need to clean out the viv. Your plants will take up any of the waste matter left from the PDF's.
Poison Dart Frogs, Tree Frogs, Geckos, Snakes, & a doofy Weimaraner