well at least

1. switch on Indirect Lighting in Render Settings

2. give the ball a material with something attached to Ambient Color, and a nice value (0.5 or up) to Ambient Value.

the latter will make the object glow, then the first will treat glow as a light source. Everything beyond that is experimenting, searching forum threads for more details, and so on.

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Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though