I've been told that the Client and Server versions of Mac OS X 10.3 "Panther" are basically the same except that the server version includes more administration tools. Filemaker recommends both operating systems versions for Filemaker Pro 7 Server Advanced. Is there a major benefit of one operating system over the other in terms of running Filemaker Pro 7 Server Advanced? If so does it matter if you use the Mac OS Server 10 client limit version as opposed to the unlimited client version? From my understanding the 10 client limit applies only to file sharing but I'm not sure if that would be a factor affecting Filemaker Pro 7 Advanced ability to host files to more than 10 guests?

Just use the regular MacOS X. The Server version doesn't give you any additional functionality for serving FileMaker databases, unless you plan on using a RAID disk array - I believe Server comes with management tools for that. Also the 10-client limit is for file sharing - nothing to do with FileMaker - but a moot point since the regular MacOS X will probably be fine.