I just picked up "Hearing and Writing Music: Professional Training for Today's Musician", by Ron Gorow and I find it really interesting.
I find this book very different from your average music theory text, as it address so much more of the intangible elements of musical training. Granted, I don't think it's a complete text, but it's full of insight and practical stuff.
I am only beginning to read through it but since I've only found a few mentions of it using the TB search, I though I'd start a thread and see if anyone else has found this book helpful.
I enjoy writing, composing, arranging, and transcription so I think it's useful, although your average "weekend warrior" bassist could probably skip it.
Here is the link to the website associated with the book, even though I just picked it up at Barnes and Noble.
http://www.rongorow.com/author/index.html
Matt