Here's an update, 2 months after surgery. It is actually called a "minimally invasive procedure", performed with robotic tools and techniques, through incisions in my right side. The recovery time was less than that of a typical open-heart surgery. From check in to check out was less than 80 hours. Although there was some intense pain after the operation, there wasn't a lot of pain after I got home, I decreased my pain meds within a couple of days and had quit entirely within a week. I started my cardio rehab about 5 weeks after surgery, and probably could have gone sooner if there had been an open spot for me. My muscles are still sore from the rehab sessions, and one of my actual fears is true - it's boring. Other than that, it's a friendly atmosphere, and I've been pushed to stress my muscles, heart and lungs some, but it's not beyond what I'm capable of.
I seem to have put on a couple of pounds, which is welcome. I may be able to breathe a little deeper, and don't tire quite as quickly.
I'm told the real improvement starts at 12-16 weeks, so I'll probably start noticing more positive results soon.
peace