Edit to original post:
A few days after our purchase, we found out that BumGenius released their new 4.0 models. We returned our purchase and have pre-ordered the newest version, which should be delivered mid July.
Today we took the plunge and invested in our cloth diapers. We decided on the BumGenius 3.0 One-Size diapers because they seemed to be the easiest to use. These diapers are sized to fit babies from 8-35 pounds, and adjust with velcro and snaps. They are shaped just like a "regular" disposable diaper, so putting them on a squirmy baby should be pretty easy. Wish us luck!