For what it's worth - The Cubs need to bolster shortstop/second base, center field, and get an arm in the bull pen. Marlon Byrd is the best option for center field. So really, there are no options for center field. A quick look at the 2010 FA roster, Capps is the best option. So really, there are no options for the bullpen.
Which leaves us second base. There is one guy left on my wish list for second base, and that would be Orlando Hudson. As mentioned earlier, Orlando Hudson is basically a switch hitting Freddie Sanchez. at 283/.357/.417/.774, he's an upgrade over Fontenot and Baker, and he adds balance to the lineup.
One other thought - Miguel Tejada. After a slow start last year, he really picked it up after the first couple of months. He's a decent power bat, and he allows a move by Theriot over to second base - a more natural position for him.
One last thing: Signing the aging Tejada to a short deal - 1-2 years - would allow him to keep the spot warm for dreamy Starlin Castro who will undoubtedly revolutionize the way shortstops play. Tejada can also move over to thrid base when, er I mean if, Ramirez goes does, or worse, opts out of his contract at the end of this season.
Just a thought....