I want a mac mini to be used as a media centre connected to my flat screen TV. It has to be powerful enough to stream HD movies from YouTube, Netflix TV channels etc. I need a ethernet connection to connect to my NAS Drive and router so I can network to my main computer. Also it needs to be able to connect to TV. Hdd size isn't that important. I may in the future put in ssd. Which year /model mini should I get. Want it cheap as possible for my needs.