Hi Robert,

	did you already think of asking R to generate your graphs?
http://www.r-project.org
It might by far be the fastest hack and it
can generate barplots, plots, contour plots, etc.
in postscript, png, ... format.

If you have any questions about R feel
free to ask, as I use it day in and day out.

Ciao,
	Armin

> > > I need to create some charts from Ruby scripts and there seems to be
> > > quite a few options. Anyone got a recommendation for a simple but
> > > powerful way to do it?
> > >
> > > I need professional looking bar, lines and area charts.