If I were you, I would prepare for it as if you would be attending or in charge of a meeting at work. Prepare handouts, an outline, etc. of points you plan to discuss to keep the discussion on target. Why not consider a power point presentation. that way, as each slide is shown, you will stick to the planned agenda and not get off track and end up thinking afterwards "Oh shoot! i meant to say this...." Prepare what you plan to discuss ahead of time. Not only will it keep your thoughts straight but it will present a professional, business like approach to a solution.