Hi mav,
[...]
But I'll explore around PayPal to see what options they have. Ah, I just figured it out; there is a 'Download account history to comma-delimited text' function. That makes it very easy to delete unpublishable columns. But that leaves the issue of different currencies which makes graphing grand totals a bit more complicated... Argh! :)
Why not just create a chart with several graphs for the different currencies? A "grand total" chart may be more marketable, but this would certainly be more accurate and informative.