Excellent. Emerson, Ibrahimovic, and Maxwell would all be very good signings.
Emerson will add needed creativity, passing, and physical presence in midfield. I think he's the man to fill the void left by Davids.
Ibrahimovic, though not my number one target for the place likely to be vacated by Trezeguet, would also be a big help. Unlike Trez he has alot of technical ability, loads of tricks and dribbles, and can contribute to the build-up, as well as score goals. Even though I'd prefer Gilardino or Morientes, Zlatan would still be a good purchase.
The acquisition of Maxwell would also be a move that I would welcome with open arms. He definitely impressed me at left back with Ajax this season, and his purchase would allow Zambrotta to play in midfield again, which imo is definitely a plus.