Hi Treegal

Can you sew at all? It may be that you find that you can buy fabric and make them very cheaply yourself. It also means that you could make them from bamboo which is far more absorbent than cotton if you wanted to use them as boosters in pockets later on as cotton isn't that absorbent once they start doing bigger wees.

The one place where you will find lots of info if you do a search for prefolds is nappycino (just google it) there are some recent threads about prefolds and how many and what type. There is also a thread that shows you how to make them if you are interested. (I just had a look on nc and probably the best thread for you would be one called "prefolds for newborns" - it is about 10 down on the search results if you search "prefold"

Good luck