I have an alienware latop and I would sound a note of caution based on my experience with customer support in the UK.

It is a deeply lovely machine and it runs really well, but when it required a new HDD due to component failure (machine was less than 6 months old) it took more than 20 phone calls and emails and a great deal of hassle to get it replaced, and I have full coverage and on site service, allegedly. I found their support people really very unhelpful in wanting to resolve the problem - great machine until it goes wrong, in my experience. But, great machine. I have a Dell desktop however and I know who i'll be buying from next time.