Ya I was trying to make something like that for ya...but the problem I was having was that I couldnt make it still before and after the wave. I could make a huge wave, but it had a smaller huge wave in front of it.

I am not sure if it is possible, but you could try to have 1 small ocean that has the huge wave, and another ocean that is calm seas, overlay the two and get that effect. As for the wave breaking over itself, that is another huge problem, I am not even sure if the animation for the ocean can even do that in maya...