Here's the deal with the Marriott. I sent an e-mail to Chatt Chapman (Events Dirctor for the LI Chapter, USLHS) as he is handling this. Here's the response I received Friday:

"Just got off the phone with Silvia Campa ,(Marriot bookings person), and they still are offering $79 rooms to our "challenge" people. This rate WILL HOLD as long as reservation is made by April 13th."

So if you call and are told those rooms are not available, ask to speak to Sylvia Campa (and get the name of the person who tells you the rooms are sold out).

E-mail me if there are any problems.