I picked up a TX2500 series laptop whilst in the US before they were out here in the UK. I unpackaged it and just carried it home with me as if id had it for ages and customs were non the wiser. But if you were to get caught I believe there is an initial import tax of ~ 7% and then VAT at 17.5% added on top. And ontop of that, actually trying to get away with it is probably a "fineable" offense. And for anyone who's wondering "how would they know where you bought it", they can check using the serial code and asking the manufacturer. But unless you're the kind of person who always gets stopped....the chances of getting caught if you carry it in a laptop bag are minimal.