Good Buy Low canidates

[wfbdan]

I am in a pretty big 16 team league. It is 5x5. I am in second to last place. Alot of my team in underachieving (BJ Upton, JJ Hardy, Howie Kendrick, Carlos Gomez, Felix Pie, Travid Hafner, Carlos Marmol) or are hurt (Grady Sizemore, Roy Halladay , Chad Tracy) I am wondering who do you think are some lower tier players who would be worth trading for now that could help my team. Since the league is so big it is hard to pull off a blockbuster deal, I have to rely on little deals and waiver claims (which we can do every third monday). Thanks for any input