SDR'09 will be held in Washington, D.C. December 1-4, 2009 at the Hyatt Regency Crystal City (use this link to get the Forum room rate) at Reagan National Airport.

The SDR Forum's block of rooms at the Hyatt Regency Crystal City, where the event is taking place, closes on November 8, so you must book your hotel room by then to receive the SDR Forum reduced rate 

To get in contact with the Hotel's in-house reservations department, call (703) 418-1234 and ask for "In-House Reservations" Monday - Friday from 8:00 am and 4:30 pm U.S. Eastern Time.    
The Hotel's fax number is (703) 418-1289 and please title a fax "ATTN: Reservations".  

Hotel image provided by Leonardo Media Services B.V.