I'd never heard of Tao Che Ching before. I have bookmarked it and will certainly read about that later when I have more time.
This is certainly a bit of a dilemma. I went on Saturday to buy a copy of the Qur'an as a present for somebody, but they were all too oversubscribed to the sunnah. In retrospective, it is hardly surprising, I suppose I was far too optimistic, but after having faced the harsh reality, I decided to not pass on the propaganda.