Agile practices go far beyond simply following the "rules" of Scrum.  To have agile really be successful, it takes organizational and cultural shifts that support the agile practices.  Vish, one of our developers, found this video about Microsoft's Patterns and Practices Team and how they worked within Microsoft to affect the changes necessary for agile to succeed.  The video follows Ed Jezierski and Peter Provost as they give us a tour of the working environment for their agile team.  Their work environment truly reflects and supports their agile efforts.  Granted, we don't all have the resources Microsoft has to build such nice digs, but there are lots of very good ideas in there about how agile teams work.  There is also a good section near the end of the tour where Ed and Peter discuss Microsoft's adoption of agile and the success they've been having with Scrum.  Check it out, it's well worth the 15 minutes.  Here's the link to the video: mms://wm.microsoft.com/ms/evnet/PatternsPracticesLab_Tour_s_ch9.wmv