As someone in DC who also feels the draw of bigger cities now and then, I'd just reiterate that despite being in Medford, (or rather, Somerville) you're right next to Cambridge, which has many of the area's cultural, gastronomic, musical, etc. attractions, not to mention thousands of other young people with all sorts of passions and interests.
I dunno, I'm looking forward to it.
Speaking of language study, I saw in the acceptance packet that they have some old proficiency tests posted on the admitted students site. I haven't been able to find them thus far- has anyone had any luck?