I'm planning to get Leopard pretty soon after it has been released (maybe I'll wait for one or two point-releases, but still). Of course, then I have the question of what to do with the old OS. Does it make sense to upgrade over the old install (keeping all the settings and files), or is it better to backup, format and do a fresh install of Leopard? Related to this: I'm planning to install Boot Camp shortly. If I decide to erase my Tiger-install when I move to Leopard, what happes to Windows? Can I tell Boot Camp on Leopard that "over there is my Windows-install, use that with Boot Camp"?