No thanks on Harrington. Between Joe Smith and Villanueva, we're all set at PF. The only thing I'd consider is a terrific defender at that position, and Harrington isn't the guy. I'm not really sure who is. Probably we'll trade Magloire for an athletic 2/3 to play defense off the bench. Larry Harris has been saying for a long time that it's one of our two big needs (CV providing the other) and I doubt that David Noel as a rookie will fill the hole enough.
Another note about Magloire: nobody trusts him to play 15-20 minutes off the bench without causing trouble in the locker room. Maybe if we thought he'd be more willing to play that role, we'd keep him around.