Best Practices pdf for integrating OS X into an AD environment
I came across this PDF today, dated April 2009 so is quite recent. I haven't read it yet so not too sure if it is worth the read but i post it here for the sake of interest:
Upon reading this PDF, there isn't much in there. But saying that there are a couple of nuggets. One of them is the fact that since 10.5.4 you can now use the .local namespace for your AD domain and os x will send use unicast first before using multicast across the network.
Have a flick through. There maybe more bits of useful info. :)