Baby registry?

Kay • Pregnant with #1!
So I am 26 weeks and going to register in a few weeks at babies r us. I am a ftm what kind of items do I put on there? My parents are buying the crib so they want me to pick a crib. Husbands parents are getting stroller and car seat set. I just don't know how much is too much for everything else? I don't want to seem greedy ?