Need Trade Help, Fantasy Keeper League -- Blalock for Doumit?

I need a catcher. My catcher is Posada, who is on the DL. The trade also involves me giving up from my minor league roster Homer Bailey for Gio Gonzalez and Jake Mcgee. I would have to drop another minor leaguer. My team right now is:

C Jason Kendall

1B David Ortiz

2B Kazuo Matsui

3B Ty Wigginton

SS Bobby Crosby

OF Adam Dunn

OF Nate McLouth

OF Josh Hamilton

Util Derrek Lee

BN Aaron Rowand

BN Orlando Hudson

BN Chone Figgins

BN Jorge Posada

DL Hank Blalock

Minor Leagues

Chase Headley

Elvis Andrus

Jeff Niemann

Chris Perez

Phillip Humber

Donald Veal

Brandon Morrow

Chip Cannon

Chris Davis

Homer Bailey

What do you all think? This worth it? Is Baily for real? He stunk last year, but is ripping it up in the minors now. Is Doumit the next Irod or V Martinez? Should I just wait for Jorge to come back and keep Blalock and hope his power and health return? If I do this, who from my minor leagues should I drop?