> Which brings me to a point. Are there any *good* scriptable
> OpenSource plotting programs. Gnuplot doesn't count.
> Compared to any of the "worthwhile" graphing programs on
> Win32 (Origin, IgorPro, and Kaliedagraph), it blows
> massive chunks. I need something good enough to do
> neutron scattering curve fits, and able to print out
> professional quality graphs for publication.

macricht: Try R (see http://www.r-project.org/. It is mostly a statistics package, but it includes an excellent plot engine and is an implementation of the S language (so it is completely scriptable). I don't know if it can do the curve fits you need, but its output is certainly good enough for professional publication. There is also a great community of R users and developers if you have questions about R or its use.