I am not so good speaker who can be motivating to an audience of 50 or 100. I can teach things to motivated people. Moreover when a person/contributor speaks it is much more effective. 

DVDs may or may not be provided. All we need is a good speaker, who can show things, impress people and make them contribute. I hope you understand.

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Roshan Kumar Singh
http://roshansingh.wordpress.com
http://sourceforge.net/projects/gscribble