Non-repeating noise in maya

I'm creating a large surface that I want to have very fine noise. I made a fractal texture and got a style of noise I was fairly happy with. However, to get the scale right, I needed to increase the repeatU and repeatV a ton, around 800. This creates obvious and ugly repeats.

A quick google search led me to this blog post: http://www.sigillarium.com/blog/lang/en/318/
The author describes using two animated fractals (animated just to get two different values) as input to the translateU and translateV of the original fractal. I tried a couple variations of this, but the biggest problem I found was that it destroyed the integrity (shapes) of the original fractal I created. Sometimes it made weird swirly noise, other times it just created tiny random noise.

After thinking about it a bit, I decided to pipe the outAlpha of a simple fractal into the time attribute of my crafted fractal with animated checked on. This resulted in a variation of the evolution of the fractal over the surface and really reduced any noticeable repetition, while largely maintaining the "structure" of the original fractal, because it is just evolving different parts of the surface to different times.

Hope that helps someone out and thanks to Sigillarium for the foundation of the idea.

Later,
Stuart