"23 and a half Rules of Thumb for Software Development" is a classic video of a speech that Jim McCarthy made to Microsoft Consulting Services. It has been shown worldwide to anyone taking MSF training, as part of the "Principles of Application Development" course.
McCarthy also recently released it as podcasts at
http://www.mccarthyshow.com
This video is a great companion to McCarthy's "Dynamics of Software Development" book, one of the cornerstones of MSF 2.0, software engineering classic (note that the book has 54 rules, not just 23), and that the video is included with the latest edition.