If you want to build a home theater PC, you won’t find a better starting point than Intel’s Next Unit of Computing kits. This tiny box contains an Intel Core i5 chip (which should be sufficient for light gaming), various display outputs, and integrated Wi-Fi and Bluetooth antennas, all for $300.
The catch is that you’ll need to add RAM, and storage to get it up and running, but once you do, you can install XBMC, Kodi or Plex, and start streaming. $300 is the best price Amazon’s ever listed on this model, but it’s already slightly backordered, so I wouldn’t wait around if you’re interested.