I received my 5D3 yesterday evening (hand carry by a friend). The battery was flat so I left it the night over to charge.
Plopped the battery in this morning, played around with the menus and took a couple of shots of the rising sun.
Now I just have to re-adapt to not having a crop camera again. Guess the 70-200 will get more use now.
Damn, this looks like the beginning of a long and good relationship with this camera

Thanks for all your comments, either way.