Smith Street is a little smidge of a road off Huntington Avenue just before Brigham Circle. It meets in a Vee with Wigglesworth Street, where Il Mondo Pizza is located. Il Mondo serves one of the better slices of pie in Boston.
Organize-It Software recently renamed itself Roxbury Apple Service. They have a spiffy, new, handpainted sign with the name and a handpainted Apple logo. Its not as splashy as the Apple Store on Boylston Street, but it is comfortable and accessible. They have been authorized Apple distributors and technicians for quite some time, so if you feel uncomfortable with glitz and want your Mac serviced, this might be a good option for you.
Smith Street, though very short, has one other address of note. It is an Irish pub called the Squealing Pig. Both the food and the staff there are very good and satisfying. I had a tasty Dutch brew there called Delerium Tremens. It had a pink elephant on the label. I know someone who had thier first taste of cream soda there. Nothing she has tasted since has matched that wonderful elixir.
A new, tall building is going up on the north side of Smith Street so it will be hard to see these establishments when passing by on the E train. They are worth seeking out though. It's a short street, but a nice one.