For those of you who are interested in learning more about Exchange Server 2007, I will be delivering a 24 part Webcast Series starting on January 19th. The main landing page for the series is here: http://www.microsoft.com/events/series/tnexchangeserver.mspx. Please note that as of right now, the registration links for the 24 part series is not live yet. I'm just letting you know to book mark the page now so that when the link does go live (hopefully by end of this week), you can go register.
I will post the list of topics for the entire series in a few days. Please understand that what I post may change very so slightly once we get it all locked down.