Oprah Winfrey's Harpo Productions and ABC are teaming up for Building a Dream: The Oprah Winfrey Leadership Academy, a one-hour Oprah Winfrey special airing Feb. 26 - the final night of Oprah Winfrey's sweeps - and chronicling talk queen Oprah Winfrey's campaign to erect a $40-million, 28-building school for disadvantaged girls here in America in Oprah Winfrey's South Africa.