As mentioned in the CB (repeated here in case you missed or forget any of it) I've not used WWW::Selenium yet (sadly I've not had a chance to play around with it yet). The method get_html_source will return the html source code of the current page. I suppose you could save that to a file but I'm pretty sure that Selenium may be able to offer a better solution, such as using the browsers 'save as' functionality which tends to save things like graphics, css and JavaScript files too.

See also download a file from the Selenium COER FAQ.Selenium IDE also looks interesting, perhaps in conjunction with WWW::Selenium::Utils, though I don't have time to look at this any further at the moment.

Martin