Targeted or even focal cryo can be a realistic option also.
It is FDA approved, can be repeated, is capable of treating outside the capsule.
It is becoming more common (though not the norm) to treat only one side of the prostate. In order to do this though, you will need to undergo a 3D mapping biopsy.
Well know practitioners include Dr.'s Onik, Katz, and Barqawi.
For info on the current state of cryosurgery try searching on
"Oncura and Joule-Thomson" and "Endocare and Joule-Thomson"