Needs - Very fast, able to run auto cad programs like solidworks, MS office, picture programs, video editing, home stuff, 2-4 monitors, not into gaming.
Parts considering - Intel Xeon or i7 w/ 4-8 core w/ 8-16 thread, Asus MB w/ chip set z170 or z97. dual Quadro video cards w/ 8+ Gb, 64+ Gb...