As always, from the Technical RollUp : March 2008 - Technical Rollup Mail - Platforms blog posting. I've removed all the KB article stuff and it is worth pointing out that towards the end of the list are all the docs associated with what has changed with Windows Vista SP1: Blogs and information Windows...
If you use volume licensing with Windows Vista then you need to be aware of the tools to manage them - it is not as simple as it used to be as you now need a management tool inside the business. VAMT answers this as does Desktop Management. Then we have some webcasts on slow networks, diagnosing crashes...