I haven't read all the posts and I don't think I'm saying anything that hasn't already been said, but I, too, am glad to hear that you are well on the road to recovery. I had open-heart surgery about 5-6 years ago, so I know what you are going through. Take care of yourself, listen to your doctors and, above all, DON'T overdo (at times you will feel stronger than you really are -ignore those feelings or they will force you to take a step back!).
In the meantime, welcome back, feel good, and God bless.