Robert Shelton is a Software Development Evangelist at Microsoft. For any of you looking at doing MOSS Workflow in VS 2008 he has some very useful video tutorials on that very subject.
Well worth spending a spare day on if you have the time, or need the instruction.
You can find his blog here along with links to the various MOSS video's.
http://www.sheltonblog.com/archive/2008/02/13/free-training-sharepoint-training-kit-videos-tutorials-and-more.aspx