hi there, welcome to the forum.
the best advice i can give is to read as much as you can...there's plenty on this forum if you have a good search through.
ask any questions you want which you can't find the answers too, then get yourself out to a couple of different breeders to meet their cats in a home environment & take as much time as you need to find out all you want to know.
don't rush into a purchase until you're happy, it'll be no good for you or the kittens unless you're prepared.
lastly, good luck! we'll happily help you along the way