I used to play a lot of golf and was O.K., but I had fun. Because of back problems, I stopped playing about 20 years ago. I had surgery to fix the problems a couple of years ago and am interested in giving golf a try again. My main question is this. Without spending a lot of money right off the bat, what is a good mid-grade set of clubs I could look into until I figure out if I'm going to be able to play again?