n00bius, other board members. Here are the results of my test:
The MS instructions are quite correct and works.
http://technet2.microsoft.com/window....mspx?mfr=true

I used a VMware to create two servers, one with 1 cpu and scsi virtual drive, another with 2 cpu's, and ide virtual drive. Created the same drive letter for the system disk (C) and promoted the first to a DC, then moved the system state and restored to the second one. I had the both machines with same hostname and same networking parameters for sake of minimal problems.

The restore worked, and i had a functional AD on the second machine.

NOTE: Didn't have time to test, but I suspect that the second machine will have to be at the same patchlevel for this to work in production though.

Hope this helps