Cabrera and Petitte for Howard, Hanson and Carpenter?

[lone ranger]

I'm in a standard 10-team ESPN league. Here's a trade that I've been offered. It's a huge trade - very big-time power players- and I need some more opinions before I press go.

I'm being offered:
1B Ryan Howard
SP Chris Capenter
SP Tommy Hanson

and I'm being asked to give up:

1B Miguel Cabrera
SP Andy Pettitte

My current team looks like this:

BATTING

C Russell Martin
1B Miguel Cabrera
2B Dustin Pedroia
3B David Wright
SS Jason Bartlett
2B/SS Ben Zobrist
1B/3B Michael Young
OF Carlos Lee
OF Shane Victorino
OF Rajai Davis
OF Adam Lind
OF J.D. Drew
UTIL Ryan Doumit

Bench
3B Chipper Jones
OF Brad Hawpe
SS Cliff Pennington

PITCHING

SP CC Sabathia
SP Hiroki Kuroda
SP Andy Pettitte
SP Cliff Lee
SP Derek Holland
SP Javier Vazquez
RP Brian Wilson
RP Neftali Feliz
RP Tyler Clippard

DL
SP Josh Beckett

Again, this is a huge trade, so it'd be good if I could get the opinion of someone who actually knows what they're talking about.