Gerald,

>IMO, SVG is the way to go.
>
>SVG is plain text (XML) and its relatively easy to understand how to create the basic shapes and build pretty graphics and charts on the fly.

So is VML.

>The Adobe SVG viewer plugin is 'correct' but can be slow for larger SVG files. There is a new competitor in this area, they are supposed to lauch a viewer (beta) this summer with an impressive set of features. See http://www.gosvg.net/ for the full story.

I downloaded SVG yesterday, but still didn't install it *g* I'll check out the other one too.

At this point it would not seem to be very hard to render my data into either VML or SVG.