I'm settling into my new house, and the bonus room upstairs will be my theater room. I have all my equipment except for a new media/htpc to go in my server rack that will house all my a/v gear. I need something that isn't too big since I won't have a lot of room in the rack, but it will need to be able to run 4k video with ease. I don't want to spend a ton of money on it, so I don't need the best of the best stuff, just something reliable. I'll probably just use a SSD for the boot drive and to run the playback software, and have a BD-ROM drive for disc playback, and a larger size HDD to store my media files. I know it's not too difficult to build a pc, but I'll probably just have one of my friends build it for me since they have experience with building PCs. So should I go with Intel or AMD, how much ram do I need, what would be a good case to use, should I run Windows 7 or Windows 10?