Many good breeders are at the shows. I have never bought a snake from a breeder at a show but they have always been friendly and helped me. They generally have a large selection of breeders and snakes at these shows, so you can do a comparison. the prices seem pretty good as well.
if you where to buy a snake off line it would also cost to ship it and that wouldnt make it to happy aswell.you also can see the snake befor you buy it. with a breeder at the show they may let you handle it befor you make the decision.
the show that i go to is scott smiths all animal expo. tipe that in at google and you should be able to find it.
good luck