Some of the most useful docs and guides can be found for Beta 2 directly from Microsoft

(Step by Step Guide for IT Professionals)

Windows Vista Beta 2 Walkthrough

You will need MS Word for some of these docs.

Quote:

Overview These step-by-step guides will assist IT Professionals in deploying or migrating to Windows Vista. These guides will also provide step-by-step information on how to control device installation using Device Management and Installation (DMI) and manage ADMX files. There are also step-by-step guides to help you protect data using BitLocker Drive Encryption, to administer the TPM Security Hardware in a computer using Trusted Platform Module (TPM) Services, and to help deploy better-managed desktops and mitigate the impact of malware using User Account Control (UAC).

Hope this helps someone