Change Windows Server 2003/2008 Domain Name

I was curious of it was possible to change the the Domain Name for Windows Network. I knew it was possible but i did know 1) what were the effects for chaging the domain name and 2) what is the best way to go about it so then i found these resources:

1) This is about the process at the forest level and the concets
http://technet.microsoft.com/en-us/library/cc738208%28WS.10%29.aspx

2)This is the step by step technet version
http://technet.microsoft.com/en-us/library/cc794869%28WS.10%29.aspx

3)this is a high level over view from perti
http://www.petri.co.il/windows_2003_domain_controller_rename.htm