I use Knicker Nappies, but I don't love them. They leak through (even with a Super Doo insert). But I bought 14 cloth diapers/inserts and that is plenty! It can usually get me through a day and a half or two days if I do the laundry every day (and it gets too stinky if I don't).
Good luck. I have loved doing cloth diapers, but will probably switch to Bum Genius with the next kiddo.
Oh, and I bought my diapers on Simple Cloth if I remember right.
But there are soooo many sites out there, so look around as much as possible for the best price/shipping. Ebay is also an option because the diapers are just as good used as they are new.
A good how to site is http://diaperpin.com/howto.asp I couldn't get the pee smell out of my son's and their method is great! Basically what I do is add about 1/4 a cup of vinegar to a cold pre-rinse cycle. Then I use Tide detergent (doesn't cause buildup like the all-natural ones) with 1/4 a cup of baking soda on the "Whitest Whites" setting (it includes a 2nd rinse and does the hottest and longest wash). Then I dry them on medium heat for 60 minutes. It's worked perfectly!