I'm lagging here a bit, but I did want to point over to the release a couple of weeks ago of the VS2K8 version of the SharePoint 2007 Extensions.  I'd already noted the documentation which was released with the VS2K5 version, but you can find the actual 2K8 version at

http://www.microsoft.com/downloads/details.aspx?FamilyID=7bf65b28-06e2-4e87-9bad-086e32185e68&displaylang=en