My HTPC build.
Already had some RAM lying about. I also tried to re-use an old power supply but it was too big to fit into the case and get the blu-ray player in so I had to buy a smaller one.
The CPU is overclocked to 4ghz without increasing voltage which is enough for me.
It's working nicely. I've watched some Netflix,Plex and Blu Rays. I've also used the Xbox App to stream my Xbox One which works well. Steam Streaming also works well from my gaming PC for a bit of Rocket League.