sonofigoo

From what I've been reading and the work I've been doing in a lab environment. I have introduced Win 2008 DCs into a W2K AD Forest fairly straight forward. However, if you have exchange 2000 as well, this is the big issue. There are hurdles to jump in this case. Which I would like to ask, if anyone has gone from Windows 2000 and Exchange 2000 to Windows 2008 and Exchange 2007. The question I have because of the issues with 2008 DCs not being found or recognized when trying to prepare the schema for Exch 2007 is if one is better off introducing W2K3 DCs first and then doing inplace upgrades to 2008 if that is even possible?