John Stover has written an excellent post on MOSS 2007 Licensing and Configuration Scenarios. Some other important links related to this are as under: Windows Server 2003 R2 Pricing MSSQL Server 2005 Editions & Pricing MOSS 2007 & Related Technologies Pricing Cornelius also has posted an excellent post on Complete MOSS Licensing info ......
Great Stuff by Microsoft!!! You can download the books from here:
http://csna01.libredigital.com/