This is by far my favorite LFS. Their stock is great:
Wet Pets
520 Hartford Turnpike
Vernon Rockville, CT 06066
Tel# (860) 875-8265
It is a bit of a drive for me but well worth the drive IMO.
The only other place I would recommend is:
West Hartford Puppy Center
1148 New Britain Ave
West Hartford, CT
Tel# (860) 232-8888
Good stock great selection but a little pricey.