A couple more names for consideration for the off the bench role. They are all FA's per mlbtraderumors, and relatively inexpensive, some more than others:
Aubrey Huff (Lefty -1B, 3B, LF, RF)
Adam Kennedy (Lefty - 2B, 3B, 1B and a little OF)
Chone Figgins (cringe, I know, but - Switch - LF, 3B, 2B and a little SS)
Nyjer Morgan (Lefty - OF)
Ryan Sweeney (Lefty - OF)
Luke Scott (Lefty - LF, RF, 1B).