I saw that the older mac pros were upgradable but the newer ones not so much for internal upgrades.
I really like the Mac OS and hate Microsoft. Is it possible to build a Mac from scratch using a standard tower case? I want something that I'll be able to use for five or more years then be able to upgrade hopefully then the CPU and or my plus other things as technology gets better like a PC but not have to worry about the OS creating problems with every update.
If this is possible where and what me and CPU to get plus the video card and network card HD,SSD, and memory are easy but the core components are what need to be Macos specific to work without a hitch. I'm not talking about building a PC and hackintoshing it. All apples run Windows usually but not all PCs will work with Mac OS I want to build a machine that will run Mac OS now and into the future plus dual boot Windows.

, i use my macs until they disintegrate. I am also quite capable of tearing them apart and putting them back together again. 
