CRAIGS LIST!
my youngest is 7mos old... as he starts growing out of stuff i'm selling it on criags list. i already sold his swing, snap & Go stroller etc.
it's a gold mine out there.
pack n play with a bassinet attachment - this will be fine for the first few months - the bassinet attachment can hold the baby up to 15 lbs. this may be a little harder to find used - b/c i know most people keep theirs for a while b/c kids can sleep in them up to their liek 3-4 years old (especially for trips etc). so alot of the ones on craigs list are older and may not have the bassinet attachment. a new one is like $100-$150 this would be worth the investment to buy one new. b/c you'll have it for years.
Cribs - again kids are in them to they are like 2-3-4 years old. so the ones that are out there maybe some what older. this also might be a good investment brand new.
Infant carrer/carseat - i'd buy this new - just for the sake of liability - you don't know if the seller ever had an accident with it etc.
other than that - i think you should be able to find everything else you need on craigslist - high chair, bouncy seat, excersaucer (not until the baby is like 4-5 mos old), bathing tubs etc.
don't waste your money on cute outfits for the 0-3 month size.. babies are so squirmy that it's just easier to have them in onsies and one piece sleepers. 3-6 mos will be summer time - again onsies or one piece rompers are easiest. Ebay - you you can find tons of "lots" of baby clothes - people sell lots of clothes in single sizes.
do you know if she's having a boy or girl?
feel free to email me ____@____.com i said as my son is growing out of stuff i'm selling on craigslist/ebay. i'd be happy to sell you things you need directly.