I've got a question for those familiar with OSX Server; is it possible to crossgrade between the user and server versions? Or, alternately, upgrade from, say, 10.2 server to 10.3 standard or vice versa? This question is purely curiosity, since it's essentially impossible on Windows (been fighting with this fact all day) and I'm wondering if the situation on the Mac is the same. The irony of Windows Server vs Workstation/Pro (depending on the version) is that they're the same outside of some addons (you can switch between them with a registry tweak). Here I want to upgrade a Windows NT Server installation to a Windows 2000 Pro installation, which should be quite possible, but MS isn't about to let me do it. How about Apple?