Congrats!! The best advice I can give is to read this forum and ask questions. When you bring them home, give them some time to adjust to their new surroundings. Each time I brought a new chin home, I would sit in front of their cage and talk to them...I'd do this a few times each day so they'd get used to my presence.
Some say not to handle them too much for a few days, but I think it helps them get used to you. I handled all of mine...just held them for a minute or two, petting them and talking. I guess it all depends on the chin and how you want to handle them.
Good luck and I can't wait to see pics. BTW, I'd like to see a pic of the cage.
Edited to add....I use bottled water for my boys. I supposed filtered water would be ok too, but definitely don't use straight tap water.