SVG graphics items?

Has anyone tried out the SVG graphics items using Qt? I’m considering adding a cool feature to the polymer builder – rendering the 2D chemical structure using Open Babel’s SVG layout on-the-fly.

My idea is that the user would pick 1-3 repeat units, see them “live” in the dialog, and then type the # of repeats or the % composition and it generates the polymer chain.

The main “obstacle” is that I haven’t played much with QGraphicsScene / QGraphicsItem or SVG. Should be fun.