The NCTIES block of rooms at the Marriott is now full. You may still be able to book a room at the Marriott for the conference, but it will be at a higher rate and will not include the free parking and in-room Internet agreement.
The Sheraton has no more rooms available with two double beds. There are still plenty of King beds available at the Sheraton and there are also a number of roll-away beds to go in those King rooms.
Visit http://ncties.org/conference/raleigh/hotels/index.html for more information