Jeff Wettlaufer highlighted this video on how to integrate FEP 2010 in to ConfigMgr 2007, seems to have caused a bit of a stir at TechEd 2010 I believe, bit of a hot topic ...

http://blogs.technet.com/b/systemcenter/archive/2010/06/10/configuration-manager-2007-and-forefront-endpoint-protection-2010.aspx