This is entirely based on the fact that you are just throwing Fitz away anyway.
Its a no-brainer. Turner has 1 maybe 2 good years left and Rice is just hitting his prime, and you aren't even keeping Fitz.
Its like trading Turner for Rice straight up. Its a win/win for both owners IMO.
Accept the trade and roll into 2011 with the top QB and a top 5 RB