Proton Beam has been used for considerable time, although it hasn't been readily available to many patients because Loma Linda has been the only institution to use it.
If you havn't already looked at the information, it's available on the protonbob website along with stories from a lot of men who have used the treatment. When I was considering it a few years ago, Bob gave me contact details for 7 local men from Australia who had been there. All of them replied, and they were very positive about their results.
HIFU is new to USA but it's been used extensively in Europe and Japan for a long time. A ot of men have gone overseas for the treatment.
No doubt you'll have a number of replies with specific details from men who have used these treatments.