I don't have the mini, but I'm running os x 1.4 server on an old G4 xserve. Coming from a graphic design/mac background, the initial server setup was dead simpl

I don't have the mini, but I'm running os x 1.4 server on an old G4 xserve. Coming from a graphic design/mac background, the initial server setup was dead simple. The workgroup and server admin tools are excellent and allow you to administer every function of the server remotely. It ships with Apache, tomcat and jboss and mysql, etc. and provides nice interfaces to administer all services. When I bought the xserve it was running server 10.2, I considered updating it to a regular 10.4 or linux install, but found the tools and other utilities (and stability) convenient enough to purchase a copy of 10.4 server. Hope that helps. All said, I love my mac server :)