The only way I see us getting another 2nd rounder is if we traded down in the 1st, which is possible. However, I wouldn't like using a 2nd on a DT. I understand the concerns with injuries, but with the way some of those guys came on late in the season (Toeaina and Kennedy), the position looks pretty good.
My favorite scenario is OL, QB, and WR taken in the first 3 picks (any order). I wouldn't mind Safety either, but some of this might shake itself out prior to the draft.