First off Wes Welker is a no brainer.  Then I think you start Vincent Jackson and Percy Harvin.  Harvin has been too good in the last few weeks to not play.  If AP is going to play I think you have to start him, but you need to make sure he's going to play.  Then I would start Helu, he's getting carries, 3 100 yard games in a row and he's going to get touches.  If the league is PPR tho I would start Sproles.