Recently in an innovative way to launch their 2008 suite of products Microsoft organized a two days online session called Virtual Tech Days all across India on 9th and 10th of April. The seats were quite limited, and many could not register for the same owing to the closure of the registrations around 2 days before the event. However, now MS has made all the resources for the session (presentations and live recordings) available for everybody at http://www.microsoft.com/india/virtualtechdays/. So even if you have missed the sessions, you can download them now and view them as and when you wish.
Most of the stuff is introductory in nature and can be a good place to start if you are totally new to this suite of products. However one can be most benefited, if they have a prior experience of working with previous versions of some of the products.