I often receive a number of emails immediately after the Technet Events I deliver requesting the slides or other supporting materials. You can grab the slides from our current Vista/Forefront/Longhorn sessions as well as most of the slides form the lat year or so at out Technet Events Resources Link.
Don't think this lets you off the hook so you don't have to come to the live sessions though - the slide decks you grab from the resource link have everything I show plus a lot more - but I show very few slides in my sessions. I talk to the slide points while I spend 2/3 of the time (or more!) in demos when possible. I believe seeing the products in action is a lot more beneficial than just hearing about what they are capable of.