I like this deal. I think they needed to trade Lowell, since he no longer can really play 3rd base, and we don't have an opening at DH. While I am sure he hates to leave, I also do not think he would have been OK with being a part time player. So the fact that they could get a nice prospect for him, at a valuable position, is much more than I thought would happen.
Now the question is what will happen next. I am really afraid they are targetting Nick Johnson. He is Theo's type of player, but he misses a ton of time. With Drew already on the roster, they can't afford another player that unreliable.