Hi jason
I always take mine in my hand luggage - you will be required to take it out of your bag for x ray. Don't think I'd trust those guys chucking the cases about in the hold with my lappie inside
You might only be allowed 1 piece of hand luggage depending on which airport you're travelling from.
I usually use my laptop bag but last time we went I wrapped the laptop up between some clothes in my hand luggage bag.