The northeast corner of State Highway 121 and U.S. 75 will be much swanker as construction is set to begin on the 211-room Westin Hotel in the first quarter of 2008.The Westin will be McKinney’s first-full service hotel, and will include a 6,000-square-foot Heavenly Spa by Westin, concierge service, an indoor and outdoor pool, room service, a lounge and a lobby, said David Pitstick, president and chief executive officer of the McKinney Economic Development Corp. “It will be the newest version of any Westin Hotel in the country,” Pitstick said. Story....