If g335 is going to be learning about networking, then RDP is not the solution for him. SchizTech's answer is the best. Any version of Windows in use today can do basic NetBIOS networking not needing a domain controller or DNS server. The MAC should be able to play along by using (from the Finder desktop) Go>Servers (or similar - dont have a Mac with me) and then enter SMB: followed by the name of the Mac.