Aloha,
I too have read that. I have no other resources to point you to other than my own experience. I have been using VMWare since '07 and have never used SYSPREP. 80 Windows servers ('03 and '08) later I've had zero problems. I currently have a very generic 2k8 VM. I clone the VM, re-name and re-IP it, activate Windows then give it to the analyst. Done and done.
Bill