I do a lot of grahps in the context of my scientific work. When I look at a product like Dundas Charts, I see a lot of extraneous eye candy that distracts from objective assesment of the data. 3D bar charts may excite your eyes, but contain no more information than 2D bar charts. Worse, rotating axes will affect the perception of the data and adding perspective even more so. Call me elitist, but I think of these sorts of 3D pictures as eye candy for an audience that is easily bored with quantitative information, or is innumerate all together. If the PHBs want flashy 3D charts, ask the PHBs to buy the flashy 3D chart package :)

If you really need 3D graphics, however, the PDL module has an openGL extension caled TriD that allows 3D graphics to be used. For a wide variety of 2D plot types, check out Grace There is a perl binding to Grace in the form of Chart::GRACE. I haven't tried the module, however, because it is certainly easy enough to interface with it through the shell. GnuPlot also has a wide variety of plots and has the perl binding Chart::GnuPlot. In terms of visual beauty, I find Grace the better choice.