i'm leery of lopsided trades like this.
lee> maholm, though maholm is pretty darn good and could be even better as time goes on. not now, though.
youk> davis. i think youk is overrated. again, davis might be better in the future, but how can you know?
hill and hunter are good to have but hill is a fringe player in a 10 team league and hunter is good but will decline eventually.
the question is, who would you be dropping to take on those two additional players? i don't see anyone (Aside from hoffman, maybe) who i'd drop for either hunter or hill.
i think you should not do it for the above reasons... there is better value to be had for lee and youk. and be wary of uneven trades... its usually someone throwing quantity at you and hoping you confuse it for quality.