On the newish side, but in the North End, is Taranta. The list has lots of Southern and central Italian stuff you don't see too often. Il Capriccio is far and away the best Italian wine destination in NE, if not the country. Other good sources? No. 9 Park, for Cat Silirie's list, probably the only place with the type of finds you'll get at Capriccio. South End Galleria has some interesting bottles. Ditto The Blue Room in Cambridge and Rialto in the Charles Hotel.