I think Scott Rolen just sprained his ankle. With all the other bad luck he's had, you may want to avoid him. GIving up Kearns and Acevedo is not giving up much, but Acevedo seems to be doing real well. If you feel confident Rolen will rebound, grab him. I'm not so confident though. He can't play in Philly. He's got to get out of there.
I think I like Dunn the most out of those three, but Glaus is a third baseman. there are more outfielders out there than thir basemen. I'd much rather have Glaus than Rolen!