I just found a great video on YouTube of Jarrod Saltalamacchia practicing picking balls out of the dirt and then doing his throwing mechanics to 2B.
Salty and I were roommates on the road in 2005 in Myrtle Beach. He is an extremely talented catcher and this just goes to show that you have to practice EVERYTHING! If you want to be able to do it well in a game, you must practice it first!