One more thing, some breeders will give you a small blanket or towel or something that has been with the mom and litter; the scent may help him be more comfortable in adjusting to his new home.
In case you haven't seen it, here is the link to the Puppy Care Guide for new parents that is in the Yorkie Talk Library.
http://www.yorkietalk.com/forums/pup...w-parents.html