Recently, Apple posted a new online seminar (linked from enterprise Apple Store pages) entitled "Best Practices for Integrating Mac OS X into Active Directory." This seminar will show registered participants how to deploy machines running OS X into existing Active Directory setups.
Apple lists several things that are shown in the online seminar, some of which include:
Integrating an Active Directory environment into Mac OS X
Using the Active Directory plug-in in Mac OS X
Configuring home directories (includes how to do this with mobile users)
You can watch this free online seminar by going to Apple's seminar website and registering. You will then be able to stream the video using QuickTime Player, or download an iPod-compatible file.