Bank Transfer payment module lets you store your store's IBAN code and expose it into the checkout form.
Users chosing Bank Transfer will order in pending state. Then when you get the transfer, you have ability to flag order as payed then continue the shopping process.
It's a starting point from payment packs. Really it's a fork of check payment.
It italian we use to call it Â«Bonifico BancarioÂ»
Update: Ok there isn't any need to make a fork. While I was doing this, it was already released...