As someone has mentioned SVG I dont' feel so embarised plugging my own module:
http://search.cpan.org/dist/SVG-TT-Graph Prints out bar / pie / line graphs, it's designed for presentations to managers - e.g. looks sweet, and has a fair number of options for customisation. Use this to generate the graphs and save them to disk, then pull the graphs into a generated webpage (I'd recomend using Template Toolkit to build this) which has all the copy on it.
