There are two major lodging venues, the redrock inn, http://red-rocklodge.com/ thats where dub and some of the others crash, and then at the Portal campground: http://portalrvresort.com/. At the campground there are two options, the group site, no power, its basically a field for tents. Or you can get your own camp site with power and whatnot.
Redrock is about 60-70 bucks a night, group site at Portal is 21 a person/night, and a tent site of your own is 30/night. I will be getting a tent site with power Worth the 9 bucks for me and there are two of us.