There are rooms available and will go very quickly - I have a 90 room block for the Enduro racers/crew/families at the Bluewater Resort & Casino:

When making your reservations please call 888-243-3360 and you must specifically tell them that you are with the 2006 BWRC '300' Enduro and use Group Code # 104176. The racer rate is $79/night single or double occupancy with minimum two night stay. Be Warned: ROOMS WILL GO FAST AND THEY WILL SELL OUT.