check with your local toy breed clubs also some of your doggie day care facilities to find local conformation classes.
as far as where the show are and when either AKC or your superintendents website
http://www.jbradshaw.com/ - or -
http://www.onofrio.com/
typical pricing for three day show entry fees are just under $100
this doesnt include if you hire a handler to show your dog beginning price is about $50.00 per day, add any travel expense (gas or airline), lodging, daily grooming and feed for you dog.
hope this helps