Donald Trump and developer Louis Cappelli celebrated their latest creation, Trump Plaza New Rochelle, at a topping off ceremony Monday. The final floor of the 40-story tower has been built, making it the tallest building in Westchester. Tenants are expected to move into the hi-rise, located at LeCount Place and Anderson Street, in the fall of 2007. The building offers panoramic views of the county and the Manhattan skyline. The price tag for a luxury condominium can run up to $1.5 million. Trump and Cappelli are also pairing up for a $3 billion redevelopment project in downtown Yonkers.