I would definitely trade Willie Harris for Ryan Dempster - however - I would not expect Dempster to be our number two guy right away. He hasn't had a good season in three years. However, at 25, he's got a ton of potential, and the fact that he did put up a good season at such a young age, he would be hard to pass up on. That could be the kind of steal the Cubs made when they got Clement last year.
Astacio for Lee? ugggh... he's already like 33, he's overpaid and he's had one good half season... i'd back away slowly from this offer.