Syncharmony,very nice composition.Was the water rapid?Beacose when I try to get the same efect I always burn the image and I think the river I'm shooting is to slow...
I went to take this photo late in the evening since I don't have a ND filter. It was around 7 at night so the sun was close to being set, so I was able to use f/16 to get me around a 1/2s shutter speed. The water indeed was quite rapid, and something that you have to experiment a bit with between the aperture and shutter speed to get something that looks nicely blurred without being excessively so.
So, if you don't have an ND filter, try to goto a place with a quick moving stream or waterfall and shoot right around sunset or before sunrise when you have some but minimal light.