I have some experience with Sager / Clevo, great quality in their builds. Got an 8130 on order now.
Also wanted to note, xoticpc has EXCELLENT customer service. They are available at all reasonable times, and will be willing to answer any questions you have about their services. When you click their live chat button, you can type in what rep you want to talk to, and talk to the same person every single time, they will get to know you. A+ company