Nervous about presentation today

Well, I made my case about the population I would like to study and why I would like to do so to a girl in my department.  This girl is very active in this population, and so I requested some help in my quest for finding support.  Well, she was very enthusiastic in her desire to help me.  So much so, that she invited me to a meeting today at noon to present these ideas to some very influential people that can assist in this endeavor.  Needless to say, my grassroots approach to this project (although I doubt it will ever see entry into my dissertation project) will hopefully inspire others to take the lead.  At least that is what I am hoping anyway.  I am quite nervous about this presentation, but I wanted a challenge and got one, so I can't complain really.  Anyway, wish me luck!