First the part no one likes to hear: You should have done all this BEFORE getting the cham. They are a LOT of work, more than people realize... and they cost more too.
But, if you're like me, you'll be getting it anyway!

So here is what you should get:
NOTE: This is for a 2 month old, when it gets older and bigger you'll need yet another cage.
You should like for an ALL SCREEN cage that is at least 12" x 12" x 24" (double that in 3-4 more months).
NOTHING AT ALL at the bottom, expecially NO bark or moss. They can be eaten and that is a very bad thing.
Lighting: Reptisun 5.0 TUBE light (NOT one that looks like a bulb, that can cause damage). Regular 50-75 watt light bulb in a reflective hood (this is for heat - the only heat the cham needs). For a 2 month veild the basking spot should be around 85-90 degrees which leads me to the next thing: A digital themometer to measure the temp.
Supplements! You need at least 2 different kinds: Calcuim WITHOUT D3 (for every 6 days), then one WITH D3 (for day 7).
Misting bottle (they need 3+ mistings/day for at least 5 minutes each).
LIVE plants!! Recommend: Pothos and Ficus. They stay alive and they won't hurt the cham.
That should get you going.