i've bought an alienware m18x back then in 2012 from HIDevolution Computer US.shipped by fedex, and absolutely NO TAX was charged to me at all. the laptop worth USD 3000 plus..for the power supply, the voltage rated as far is remember it stated 110~220. so it is compatible with our country. only the problem is the socket. i think this one u cam just buy from computer shop locally or just get an international socket. well, that is just my experience. the laptop i bought already sold to other last year.