http://blogs.technet.com/sus/archive/2008/10/14/technet-webcast-deploying-windows-vista-service-pack-1.aspxThere's a new webcast planned that I thought you might be interested in.  It basically covers what's new in Vista SP1, what you need to know before deploying it, and how to deploy it using WSUS.  If rolling our Vista SP1 via WSUS is in youren-USCommunityServer 2.1 SP1 (Build: 61025.2)