WoW First Person Mode

I think it would be cool if we had a First Person mode in WoW, It could be turned on just by pressing some button or by scrolling all way in your character. They could make it so you move your vision(field of view) with mouse, if you look down you can see your own body (chestplate armor, arms...) and just imagine first person combat. Bashing your mighty sword on armies of the scourge. This would be nice addition to game, especially if you are liking first person games, or if you are making machinimas/wow movies. Tell me what you guys think.