Need a #2 RB - what can I trade?! WHIR 100%!

[bounce]

I'm 2-3 and trying to stay alive in my league. My roster is:

Q - Romo (Flacco)
R - MJD, Rice (Parker, JJones)
W - Calvin, Jennings, S. Smith (NY), Manningham, Burleson
T - Cooley

It seems like my biggest bargaining chip is QB (after the byes, and WR - given Cal isn't hurt bad...)

Who would you dangle, and what caliber player would you ask in return?