I just found these really nice tips from Scott Hanselman himself. It’s sort of a “check-list” for what you need to know before going to the stage.
http://www.hanselman.com/blog/TipsForPreparingForATechnicalPresentation.aspx
http://www.hanselman.com/blog/11TopTipsForASuccessfulTechnicalPresentation.aspx
http://www.hanselman.com/blog/TechnicalPresentationsBePreparedForAbsoluteChaos.aspx
Enjoy – and thank Scott for the tips :)