I liive at the Jersey shore, and I recently got a pup from Marie, a breeder in West Hempstead, NY and wouldn't hesitate to get another from her. Check out her website
http://celticirishpuppies.com
When we were there the Friday of Memorial weekend she had 4 pups that she showed us. Two she said would about 12 lbs and two that she said would be under 7lbs. From the YT crew I understand its hard to predict adult weight ( he was 3lbs at 12 weeks ), but little Dublin is so awesome and adorable I couldn't care less what size he ends up.
Also find a thread called NY Breeders that I recently stumbled across. It seems there is a popular store called Quality K9s that quite a few people recommended.
Good luck! You're going to love the breed and become addicted to this site!!