The marketing folks in Redmond have put together a pretty nice Windows Server System Evaluation DVD which is available for free at the link below. The kit, beyond containing all sorts of technical whitepapers and case studies, also includes a client and server Virtual PC 2004 image of the following products:
Client - Windows XP, Office 2003
Server - WinSvr2003, Exchange 2003, SMS, MOM 2005, ISA, SQL 2000 and SharePoint Portal Server
Click Here To SignUp For The Evaluation DVD