Ebook: MCSE Self-Paced Training Kit (Exam 70-294): Planning, Implementing, and Maintaining a Microsoft(r) Windows Server(tm) 2003 Active Directory(r) Infrastruct

This was my primary resource in preparations for the exam, which I passed easily. Material is well presented, although I have found several mistakes and there are a lot of superfluous "lesson reviews" and "lesson summaries" at the end of each lesson.
In my opinion, the best parts of this book are practices and troubleshooting labs. I have set up a little virtual network on my PC (using Virtual PC and Virtual Server), and have done all of them. They really help you gain some practice using Active Directory tools under Windows. I had 2 questions on my exam in which one had to demonstrate practical knowledge of using these tools, and I have heard that Microsoft will add them more.