Figuring out what to buy is the hardest part about cloth diapering. But don't fret too much. First, think about your budget. Then decide on snaps or velcro, or some of both. Chubby babies do better in snap closures, while trim do better in velcro.
Average babies can use either very well.
Snaps are more fidgety to use, but Velcro makes that velcro sound and sticks together in the wash. Totally your personal preference. Only you can figure out your own answer. Using cloth is actually very easy. Just make a decision, and go for it.