congratulations sir. well, theres not much u have to do for break in period.just drive it softly n change oil at 3000kms first time.
as for the registration. if u can wait till next year, then please hold it for a while. there will definately be some effect on the market value of the car if its registered in 2013. not too much though but still. it will be counted 2013 model, not 2012.