All you need to know is here
http://www.pregnancyforum.co.uk/forum/v ... hp?t=12433
but here's another overview......
There are
THREE basic types of nappy 'systems'
The pocket nappy
These are a one-piece nappy often in funky designs with an open pocket in the back where you can stuff the absorbant bit in. That could be a special insert, terry nappy or any absorbant material. Can easily be pre-stuffed and changed as easily as a disposable, great option for childcare. Can work out a bit more expensive.
The All-in-one nappy
You can use liners with all the nappies to catch the worst of the poo.
Does what it says on the tin. Closest to a sposie, put it on, take it off and chuck it in the wash. Not always as reliable as the other systems and drying can take longer.
The two-part nappy
Probably most common (and what we use). You use a nappy for the absorbant bit. This could be an old-fashioned terry square, a pre-fold (a flat but thicker material) or a shaped nappy (usually fastened with velcro/poppers/nippa). Then on top you put a wrap, the waterproof bit. Get it right and it's so reliable to do it this way.
Then you get into whether you want birth-to-potty or different sizes. And there's the materials...cotton, bamboo, microfibre.......
I'm happy to answer any questions via PM, or here if it's not repeating the above thread too much