I am looking into doing a flat domain conversion. Currently we have a single Forrest with two sub domains. This makes gpo and security management a real pain. I have been trying and research a way to convert to a single flat domain but have not been able to find any good material.
If someone could point me in the right direction it would be great. Also I have been thinking of re-iping the office while I am doing this. But this might be a whole separate head ache as I would need to redo all of our firewall stuff also.