I used prefolds for my DS when he was a newborn. For the newbie stage I recommend 36 prefolds and 8-9 covers. Past that size 24 prefolds and 6 covers works just fine. This is to wash every other day. If you want to go longer between washing then get more.
My iDevices are out to get me. Please excuse mistakes.
Elisha, wife to my amazing husband and SAHM to my beautiful baby boy, Titus.
Expecting our new little one December 2013!