This video shows you how to get on top of Orgrimmar in the latest WoW patch (2.0.4)
There are no cut scenes, it is a continuous uneditied clip from start to finish. I start in Orgrimmar heading out to Durotar and finish from on top of Thrall's chamber and then inside it.
This video was made without the use of any hacks, cheats, or third party programs. Completely possible on any live server any faction. Very minimal wall jumping is used, its a rather easy technique that doesnt take much practise and anyone can do this.
Good luck, It's just for fun. :).