Jeez, that ought to be a walk in the park as most will already be where there going. Take I-95N to (New Haven) I-91N to (Hartford) I-84N to (Sturbridge) I-90E (Mass Pike east - Boston).
fail, actually its Merrit Parkway, 91, to 84 to 90E i believe. Merrit Parkway is a lot prettier and scenic than 95