I don't think you'd go wrong using the same fabric in different colors. In the case of this pattern, which is fabulous by the way, I think it is striking because there isn't the kind of variation you'd see with all different colors/patterns.
I'm doing a quilt for a class called Lucky Stars that I decided to do in all the same fabric but with different colors. I haven't started it yet but I think it will work very well. I chose Moda Marble Swirls in the twelve color wheel colors.
JMHO
http://www.atkinsondesigns.com/patte...?productID=129