I just bought a Z840 with dual E5-2690s, 128GB of memory, and dual 1080 video cards. I also set it up with 3 three raid sets. I have 4x 256GB in raid 0, with 2x 480GB in raid 0, and 4x 4TB in raid 10. I run vmware workstation with sierra running as a VM so I can run my legacy apple apps. I have run apple since the IIGS. Over the last couple of years apple pulled support for aperture and made low quality choices in hardware and poor upgrades to their line of video editing apps. It seems that they are forcing me out of my choices for photo and video editing.