After you get here, DON'T try driving around the city. Take public transportation (MBTA.com) or cabs.
Unless you like being in massive crowds, skip the Pops on the Esplanade on the 4th.
If you want restaurant recommendations, send me a PM and tell me where you are staying. I work in Boston and may be able to help.
Of course you can always visit The Harp on Causeway St., the autumn home of the Bills Backers of Boston