Also try a tiny place called Giacomo's in the North End. Try the linguine with seafood, including maine lobster, in giacomo sauce. May not be what you have in mind for a price no object dinner, but worth going another time if not that time. :-)
Boston, MA
Favorite Boston restaurants?
I like the East Coast Grill in Inman Square. The owner has a few cookbooks out (The Thrill of the Grill) and has provided some real innovation and inspiration in the restaurant business due to his world travels.