Be sure to take a look at using the WebCharts software to
utilize XML to enhance the look of your CFCHARTS. You should have
this under your CFusionMX/charting directory.
I've used coldfusion for creating charts/graphs and for basic
stuff I'd have to say it's very good. There are only so many
settings you can tweak though so if you wanted to do something out
of the ordinary you might want to look elsewhere.