Just a heads-up, there's a new MCD 4.0SP4 release (10.0.4.26) out there for anyone still working on upgrading a network from classic mode to GDM. According to the release notes, this is the recommended release for performing the migration as it has a few more SDS bug fixes and some migration tools added. Looks like it went up on MOL on the 8th.
Guess I know what I'm doing in my test lab this week...
