for me the most important things are....
bottles, liners, water, formula (she goes through a lot of bottles, only takes playtex bottles, and has a hard time with tap water), nuks (passifiers), crib pads (so she could air out without peeing everywhere), sleeping outfits, wipes, diapers, boppy, pack and play, swing or bouncer, and baby pouch
i didnt really need blankets or anything cause she was born in summer but of course you will need thse too
oh and a car seat, they wont let you out of the hospital without one
~alicia~