There are a few CEDIA members listed right in Norwalk, you can check the website for specifics at
www.cedia.org. Opus has one of the best reputations in the area, they are located in New Haven (about 30 miles away). If you are looking for a deal, a friend of mine owns Custom House in East Haddam,CT (50 or 60 miles from Norwalk). They are a custom cable manufacturer/importer and also do some custom install work. Bob has always got something interesting on hand, might be worth the trip.
jcmitch
http://www.customhousecable.com/