i'd like to participate in this thread in but i am not near as experienced as the folks in here, so bear with me.
i too use a video cam for shooting video, i really don't get the emphasis on what's out of focus in porn these days. everything should be in focus.
but i have been planning on putting my dslr on a tripod with the wide angle lens @ f11+ to get the entire scene to try and grab an extra angle, i will be trying that on my shoot this week.
anyhoo, i shoot at 60fps and 1/60th shutter. the 180 degree shutter rule. not sure if it's required with modern day video cameras but i figured it was a good starting point for me.