I was going to recommend the Nagao book, Hans, but it is more a scholarly treatment of Yogacara theory. Daizan seemed to want something from an actual practitioner.
Also, as I recall, because it is a collection of essays by the scholar written independently on various themes, it is a very disorganized compilation focusing mostly on narrow issues about Yogacara.
I am going to take a chance and recommend a book by its cover alone, never having read it. It may be about as close as one will get, being perhaps the only English book I have ever seen written by a Japanese Priest from the Hosso (Yogacara) Sect (one of the original Nara schools of Buddhism in Japan)! The amazon reviews are interesting.
http://www.amazon.com/Living-Yogacar...words=yogacara
Gassho, J