The river is running at Hite, not to mention it's a 130 mile cruise up there when the lake is full.
San Juan arm is nice, you can get away from most everyone up there. Dangling Rope is below the San Juan arm, so there is a marina somewhat close.
The lake has been comming up close to a foot a day, so set the camp up a little ways from the water.
People are cool, and really you won't be around to many as is it is.
Poochie is welcome, it gets hot and really dry up at Powell, lots of water for the dogs and yourself.
Porta potties are required, and the rangers check to see if you're using them (trust me).
Have fun, Lake Powell is addicting.