may be too late to get a room but stay on the river. i stayed at the marriott the last time and it was walking distance to everything. call them and they will help you if they are full. have fun. you might want to drive out to hilton head one day.
Agree with the Marriott or th Hyatt...all parking done and walk to everything. There is a Courtyard a few miles away and taxis are cheaper than parking, but are few and far between. Have a blast!