No need to swim far from my workplace at the Tribune on 21 East Hubbard Street is Shaw's Crab House, a place that has become legendary for seafood for many years.
My server named Anthony was friendly but not intrusive and had a vast knowledge of the menu. He was even multitasking and training someone without becoming distracted.
Lunch is the place to start at this restaurant with the delicious clam chowder. Lobster bisque is also offered and quite popular from what I hear.