The university I work at runs a master AD directory for all users. I believe they are all 2008 servers. What I would like to do is be able to authenticate my users against this master AD. My concern is the limitation listed for cross-trust relationships.

"OES2sp3 DSfW 15.3 Limitations with Cross-Forest Trust:
Trust created between DSfW and Active Directory, will only permit the DSfW users to access the resources on the Active Directory domain. The users in the Active Directory domain cannot access the resources on the DSfW domain"

Has anybody else tried cross-trust relationships? I plan to setup a test configuration, but was hoping someone else might be able to tell me about any potential problems.