You can visit the Hall of Michelangelo and the Florentine Renaissance - which also houses many works of other great artists such as Giambologna, Cellini, Ammannati, Danti and Bandinelli - as well as the majolica exhibition "Fabulae Pictae. Myths and stories in the Renaissance majolica". As always, you can enjoy an aperitif in one of the most beautiful art museums in Florence.
Entrance costs 12 euros and it is advisable to book by phoning: 055 29 48 83.
By the way, the OFFICIAL website for the Bargello, the Uffizi and other museums in Florence is: http://www.polomuseale.firenze.it/en/
And the OFFICIAL website for buying tickets is: www.b-ticket.com/b-ticket/Uffizi/default.aspx
There are a number of other websites with official-sounding names and domain names that are agencies charging exorbitant prices for tickets, reservations and other services.