I would highly recommend the weeklong training course called Situational Leadership given by the Center for Leadership Studies. I have been an engineering manager for several years now, having gone to various courses and read various books, and nothing compares to the value I got out of the Situational Leadership course.

In addition to the "how to deal with people" aspect, which is absolutely the most important thing, I might also recommend brushing up on your Microsoft Project skills by reading a book on MS Project. As far as more general books, you might look at Watts Humphrey's "Managing Technical People" as a starting point.