规划文档：
http://www.microsoft.com/downloads/details.aspx?FamilyID=723347c6-fa1f-44d8-a7fa-8974c3b596f4&DisplayLang=en
规划部署OCS 2007 ppt写的不错~
http://www.microsoft.com/downloads/details.aspx?FamilyID=9302b139-37db-4111-986c-4ccdcc7c5b3a&DisplayLang=en