Also check out Arlington. It's relatively close to Rte 2. The commute is pretty easy too. Until you reach 95. That's usually a parking lot during rush hour. I'm currently commuting out Rte 2 (Boston to Acton), and it doesn't bother me at all.
If you're looking for nice places along the Red Line, take a look at Davis Square in Cambridge. Great area, although I think it's value has skyrocketed recently.