another option is to see if there are any dog shows in your area, then go watch the havanese and talk to the people showing there dogs. They will tell you where they are from (many are breeders) and can give you insight into different breeders.
The website www.canuckdogs.com
will give you a listing of all upcoming dog shows in Canada. Look for "confirmation" which is just dog talk for dog show (as opposed to obedience). Usually you can find a schedule of events on that website that will list what time the havanese is being showed and how many are there. I was at a show last weekend (doing obedience) but there were 4 havanese in the show ring and one of the handlers was also a breeder and was very helpful in answering my questions. Her dogs were beautiful!
Other things you should look out for: make sure the dog is coming with CKC registration papers (probably will come with a no show no breed clause but that's okay). Google the kennel name and look for complaints. Many puppy mills have fancy websites that make them look like a reputable kennel.