Planning Tool for Office Communications Server 2007
The planning tool provides you prescriptive guidance to get you started with planning your Office Communications Server 2007 topology. The tool asks you a series of interview questions about the features that you are interested in, as well as information about your organization. Based on the answers you provide, the planning tool draws out a recommended topology based on Microsoft's Office Communications Server 2007 User Model that has been tested. The planning tool also provides customized links to the appropriate documentation to help you plan and deploy your topology.
Get it here: http://www.microsoft.com/downloads/details.aspx?FamilyID=06793661-cd69-4490-bb4b-e97dd271209d&displaylang=en