Good luck, has to be THE hunt.
Chasing the number one land based big predator in the world has to make your heart race almost none stop while doing it. I just read a story in Bowhunter mag about a guy with a guide that did this hunt successfully.
Personally if I was in his boots they would have been filled with body fluids by the time the hunt was over. He was very close to his trophy grizzely bear.