I seems that reading 100 books a year as a goal will filter out lot of books that might be too long/difficult. For example. Would you take "Gödel, Escher, Bach" into your reading list when it's obvious that reading this book with some understanding retained will take lot of time? Instead of 100 books a year I would go for some specific author and his works, trying to read everything by them if possible and let these authors lead you to next authors etc. etc.
For example. I was interested in psychology, this led me to Carl G. Jung, this led me to gnosticism, this led me to Philip K. Dick etc. And now I'm mostly reading his fiction.
This seems like an organic path of discovery, instead of constructing artificial list of possible books that might interest you.