A new Christian voice that is beginning to speak with authority regarding dreams is James Ryle. I highly recommend his book:
Hippo in the Garden
One of the qualities that makes this book so good is James has a great sense of humor. His book is full of fascinating stories of divine encounters between him and the Holy Spirit, and he makes the subject of dreams to be fascinating and fun. If you have any interest at all in the broader subject of how the Holy Spirit moves and speaks to us, then you will thoroughly enjoy this book. The disadvantage is there is only one chapter devoted to dreams. Although it contains some excellent insights from Scripture, the material is very weak in actually assisting you in the hard work of decoding your own dreams. This book should only be considered as a supplement to your Dream Library.
A big advantage of his book is the other chapters which reveal many of the other myriad ways the Holy Spirit communicates, demonstrating with many personal examples the glorious and astonishing reality of this verse: "For God does speak -- now one way, now another-- though man may not perceive it." Job 33:14
The great strength of James Ryle is his books are full of Scripture, often with fresh and skillful insight. Although I haven't been able to obtain it yet, James Ryle's newest book, A Dream Come True, should prove to be a treasure chest full of Dream Wisdom.