Pat Neshek (6.5 mil), Fernando Rodney (4.5 mil), and Carlos Ruiz (4.5 mil) are available for a bag of balls via trade according to MLBTR.
Rodney is too much of an enigma for my taste, but the other two could be good fits. I don't mind paying a bit more for a quality reliever or veteran backstop if it's a one year deal.