I say it depends on your team. Podsednik won't be another Brady Anderson: the Brewers will stick with him even if he struggles, so 40+ SB's is likely. If you already have enough SB's, go with Rocco and his 15+ HR's and 25+ SB's.
Junior: "Hey Kramer, you ever killed a man?"
Kramer: "What do you think, Junior, these hands have been soaking in Ivory liquid?