Scott Hanselman has a great podcast up covering the basics of Scrum. Better than just the podcast itself is a whole list of links covering Scrum and Agile Software Development.
This is something that we try to do at the County and has seemed to work really well. I don't know that we are always successful in being really "scrummy" but we do our best. We are doing a lot of talking about moving to Team System so it was nice to see a link and some information about Scrum for Team System in there too.
ALSO, if you happen to be a C# / ASP.NET developer and think you might want to work for the local County government in Portland, then watch this blog. We might have a job opening up soon. I'll post the link to the job description if it ever gets posted.