Why not try rescue?
Breed rescue have a web site (they give local contacts):
http://www.cavalierrescue.co.uk they also have lots of information about the breed.
Or there are general rescues like
http://www.freewebs.com/manytearsrescue/dogslo okingforhomes.htm they often have young adults available (and sometimes puppies).
It would probably be alot cheaper than buying a pedigree puppy, especially if you are not wanting to show or breed.
divegirl: I never said don't buy a pup at this time of year, just be very wary and check (and double check) the breeder out! Most bitches come into season twice a year for all their lives. If a breeder wishes to breed a bitch say four times in her life it is not so difficult to have the puppies born in spring/summer. If a breeder cannot 'predict' a season then they should not be breeding! As lankeela says most breeders would wish to keep the puppies until after the festive season, that is all I was getting at!