The A's have signed Dallas McPherson to a minor league deal. This could be a real steal for the A's. I know McPherson has serious back issues but if he's able to stay healthy then he'd be an upgrade over the players the A's trotted out at 3rd base last year.
Consider that in 399 MLB AB's McPherson has 18 HR. If he's able to stay healthy and get 500 AB in a season - then 25 HR should not be out of the question. Last season only A-Rod and Brandon Inge had more than 25 HR playing primarily 3rd base (Kevin Youkilis had 27 and he could be back at 3rd base next season).
Low risk - possible high reward move by the A's.
By the way here's a picture of Elle MacPherson - no relation.