shuttle buses

I need quotes on shuttle buses for guests from 2 different hotels to my reception. The Inn at Great Neck (50 people) & The Roslyn Claremont (another 50 people) to the Mill River Club. The wedding is on September 15, 2007, and the bus will need to get the guests from the hotel(s) to Mill river by 6pm and back to the hotel a little after midnight.

Thanks!