[Prettyboicris]

First off, Congrats on taking the step to opening your home to a child(ren) in need. I actually just put up my crib on Sunday but the entire time have been considered for an infant. The worker will usually tell you by what date to get stuff. I was worried about the crib this since My wife and I were open to 0-5 years old. I got a convertible crib. People on here did recommend to me to check out freecycle, craigslist and the salvation army for cheap/ free cribs. I know on Freecycle people are often giving out pack N plays which can be useful.
Some other things to make sure to have are:
Window guards if you live in a multi level home.
Out let caps so small children wont stick things into the socket.
If you use surge protectors/ power strips try and switch them for the "child safe" ones that will keep children from sticking thinks in the un used socket spaces.

I got the child proof surge protector/power strips for less than $5. The outlet caps I got from the Dollar store.

The convertible Crib I got was on sale because the same company came out with a "Fancier model" The crib was $100 and as I said it converts into a Toddler bed and has the supplies included.

While i was searching I saw pack and plays for $40.

Best of luck to you