The line chart hilite effect is really great (especially on a black
bacground, thanks Andy ). http://www.pdbook.com/index.php/excel/comment/635/

Does anyone know how one would modify it so that you for example have an
autoshape the same colour as the line on the chart and when you mouse
over it it lights up (hilites, it really is a great effect) the line on the
chart?

The other effect I would really love to achieve is a similar effect with the
pie chart where when you mouse over a slice, it's border hilites in the same
way as the line on the line chart.

Thanks again, kind regards, Mark