Did some research and found a more updated list and combined with what I had since 2003 (hope most are right):

Code:
Anaheim, Doubletree Hotel (714) 634-4500
Arizona Ritz-Carlton: (602) 468-0700
Atlanta Marriott Marquis: (404) 521-0000 
Chicago Westin: (312) 943-7200 
Cleveland Marriott Key Center: (216) 696-9200 
Colorado Westin Tabor Center: (303) 572-9100
Detroit Ritz-Carlton: (313) 441-2000 
Florida Marina Marriott: (954) 463-4000 
Houston Westin Galleria: (713) 960-8100
Kansas City, Ritz-Carlton (816) 756-1500
Los Angeles Century Plaza: (310) 277-2000
Milwaukee The Pfister: (414) 273-8222 
Minnesota, Marriott City Center (612) 349-4000
New York Grand Hyatt: (212) 883-1234 
Philadelphia Ritz-Carlton: (215) 523-8000
Pittsburgh Omni William Penn: (412) 281-7100 
St. Louis Hyatt Union Station: (314) 231-1234 
San Diego Hyatt San Diego: (619) 232-1234
San Francisco Westin St. Francis: (415) 397-7000
Tampa Bay, Vinoy Resort (727) 894-1000
Texas, Hilton Arlington (817) 640-3322
Washington, DC Renaissance Mayflower: (202) 347-3000