Doing custom build for trial of Linux distros having kernels 2.4.31 to 2.6.29. I will be using AMD processor, and three mobile-rack dedicated hard disk drives (500 to 750GB each). Prefer Nvidia graphics card, if possible (but it must not be 'HDCP-compliant' or 'HDCP-ready'). No Intel or Sony products. Price is not a consideration. Other than these provisos, I'm open to any specific hardware recommendations or general guidance, in choosing components best suited to this build.