Before anybody starts flaming, I always try to buy locally and within PA if possible. And there are a number of great shops that I deal with regularly.
But- I was looking hard for a S&W #360 J frame Talo exclusive, that nobody in the area had access to, so I broadened the search and found Georgia Gun Store in Gainesville, GA online.
From this experience, I recommend them as having fair prices, excellent service, and good communications as the transaction proceeded.