I had tried Estragon last week for restaurant -- I thought the tapas were pretty nice. The other tapas place is Toro. http://toro-restaurant.com/ For some decent cocktails, there's a speakeasy sorta bar that was recently redone in Central square Cambridge called "brick and mortar." It's right above Central Kitchen. And then for some really nice drinks there's a place called "drink" near the waterfront. http://drinkfortpoint.com/ small scene, great custom drinks and good atmosphere. expect a line though, or show up early.