Nick Johnson is still out there as well. He's the best option if he could stay healthy, but that's a really big if. That's a gigantic if. In fact, it would be stunning if he did. Stunning if he stayed healthy for an entire year, sure. But if he could give us 133 games like he did in 2009, he'd likely be quite productive. We'd have to make sure we had depth (Kila, Davis, etc), but he'd also come very cheaply. That said, I wouldn't mind choosing Pena over him for the health certainty.