Lake powell is a definite must on the list of lakes to go to
but when it comes to high end wake boats, they are not available yet (that i know of anyway) there are a couple of centurions (avalanche and typhoon) at the aramark-ran marinas and that is about as top of the line as it gets. you would probably have to rent something from higher up in Utah or from Phoenix. i know there is some service in phoenix that will bring up malibus i think, but i forget the name of the company
anyway, have fun!