In scanning past posts here, it seems like most of the recent discussion of site map tools has been for handy but limited tools, like Xenu and the netroglycerine site. I'm looking for a powerful site map generator that can handle hundreds or thousands of pages. A couple of wish list items would be dupe control (Xenu seems to list a page every times it finds it) and the ability to break the site map into pages or sections (this could be done manually, but it would be slick if the software did it).
Does such a beast even exist?