I have personal experience with Alienware. DO NOT buy them. Like people have said, the machines are great. Mine was awesome for the first year. I have had 2 problems with it since then. Now it is in the shop and has been for over a week. (They quote a 3 day turn-around). The tech support is garbage, and like someone else also said. They will not sell replacement parts. They make you send they system to them and pay $250 repair bills on top of the very expensive parts (I was quoted 1200 for a new mobo.)