Sacada. 

I looked at your displacement tutorial and it is very cool.  I am wondering if you can do a test for me.  In your tutorial, you turn a sphere into a bumpy sphere.  Well to me, that final sphere looked like a planet and was quite a cool way to make distant planets!  However I was wondering if you can do planets with water that way.

So could you test this idea:  Take two spheres and place in the exact same spot.  One sphere would be like the one in your tutorial with that same displacement mapping material.  The second one will be slightly smaller and have a water material(no displacement mapping on it).  So if I understand how displacement works, this should create a world where all the displaced sections will be filled in by the water sphere. Should make a cool looking water planet. Heck you could make an awesome Earth if you had the right maps. :)

Thanks.  I would do this myself, but can't afford to buy v6 yet. :)