Ok, enough already.
I have to admit, this program is fun, however, having thrown everything at this image, incl. volumetric clouds and cloud shadows, waves, reflections and the highest render quality allowable with the unregistered version, it took 33 mins to render. An 800x600 version of this took well over an hour on my 2.3 GHz machine. There is much to like here, especially ease of operation, but much yet to be done.
Below, just another sample of cloud shadows, reflections, and surf action.