Hello Kastano,
Yes it is a very rare figurine. I would say the rarest item for any AC fans! If you ever want to sell it one day, let me know!
As for the steelbook, no it is not the one shown on the picture but the fnac pre-order special in Spain. Here's a link to it.
http://thadump.net/sbhunterz/index.php?topic=4081.0