I am a recent brachytherapy patient and am happy to answer any question if I can (David usually calls me in ...I think I will start sharing my commissions with him!!!).
First of all, the information provided by BDJC is misleading at best and incorrect at worst. I did a TON of research on all of the treatments and, as Julie points out, the cure rates for brachytherapy alone are basically the same as for surgery. The stats that BDJC provided about PSA levels are interesting but not particularly pertinent to brachytherapy patients. After surgery, a patient's PSA should approach zero and stay there to indicate that the cancer is cured. For brachytherapy, the PSA level will drop to a nadir, then usually bounce, followed by a further drop. Sometimes that is between zero and .2, sometimes not. Because the patient still has a prostate (albeit a pretty nasty one), PSA will still be produced at a low level. So, comparing PSA levels for surgery and brachytherapy patients is not necessarily appropriate. The indication of cancer recurrance in surgery patients is almost any movement away from zero. In brachytherapy patients, the indication of recurrance is multiple post-bounce increases in PSA from the nadir.
What IS necessarily appropriate is to compare survival rates at 5, 10, 15 years and beyond. For brachytherapy patients and surgery patients with similar original stats, the "cure rate" is essentially the same. If you don't want to believe me, feel free to read Walsh's book or simply google and you will see that this is true.
Now, I can't say that brachytherapy is right for you. I suggest that any patient contact multiple EXPERIENCED docs, i.e. surgeon, radiation oncologist, prostate oncologist, etc. And, do tons of research. There are many sites recommended by this forum's administrators and these sites are excellent.
What I can tell you is that for some patients, brachytherapy is an excellent choice. Julie feels that way and so do I from personal experience. If you are interested in reading "first person" accounts, I refer you to "Just Julie's Brachytherapy Journey" on this forum and my own more recent journey, "Tudpock's Brachytherapy Journey", also on this forum.
Hope this helps and feel free to ask any more questions...I'll be glad to help any way I can.
P.S. to David: The check is in the mail...