I bought a pack of 6 Bummis organic cotton prefold diapers awhile ago and recently bought a pair of Snappis to fasten them. I use my Bummis Superbrites for covers with them.
I really like these diapers, the folding and fastening are easy and they are super affordable (I bought all 6 prefolds for $18) making them a great option if you want to cloth diaper but the initial investment is daunting.
12 Diapers $36ish
3 Covers $36ish
2 Snappis $5
Cloth Diaper one baby for less then $100. Score.