I'm a bit late to the game here, and I haven't read other's posts, but I'm sure lots of helpful advice has been given. For most breeds, finding a really good breeder is a bitch and a half. It took me six months to find a breeder I liked, and it was just lucky for me that she had decided on a second litter before year's end, or else I'd still be waiting for Finn (and I would, because Mary is -that- amazing). Definitely seek Beanie's aid and other folks who are familiar with the sheltie world. They know what will shine as good and bad in breeders. Other than that, be sure yourself what YOU want out of a breeder, and one day the right person will find you. Good luck, and keep us posted!