Good luck to you.
I had that done almost 4 years ago. My mitral valve just tore in half one day. The problem was found during a routine physical.
When they were doing some tests before the operation they found I needed a triple by-pass too. I never had high colesteral (normally 166-183) and I'm not overweight so no one suspected the blockage. Doc said I wouldn't have made it another year if they hadn't found it.
Honestly the operation wasn't too bad. It was winter and I got pretty bored sitting around the house afterwards. It did take a while to get used to some of the new meds after the operation.
It truely is amazing what these docs can do.