Suarez must be the priority due to his versatility. If we can trade both Krasic and Elia in the deal its a no-brainer. Get him asap.
In an world where Barcelona directors had any brains they would have gone for Falcao yesterday. Either their club is lacking money/being drained or Txiki is absolute crap as GM.
We have to use the Napoli-Atletico M axis. Put pressure on both teams with simultaneous bids and force one of them to broker a more reasonable deal. Spend in excess of 30m on this deal to show intention and ambition. If Marotta does one of those deals with Suarez or Cavani/Falcao that would be a good summer. In case both are completed it would be like no summer before. I will wake up at 5 in the morning for the friendlies to watch them.
Vucinic - Cavani/Falcao - Suarez
Pepe, Borriello/Matri, Quag, Youngster/Bargain buy (Should have been the captain and then that youngster ...

)
Suarez = Krasic, Elia + 10m
Cavani/Falcao = 30m + players (Motta, 50% Giovinco...)
We have the cash to complete both those transactions atm. Still some cash to get from Melo, Pazienza, Ziegler and company to fill other spots in the team. If we have in excess of 50m as hard cash at the beginning of the market we should manage it just fine.