i recently purchased an hdtv and already have an imac. I am interested in streaming or at least hooking up either an appletv or mac mini to my hdtv and watch video on my tv through that. just for tv shows or movies. What have most people done here? i understand the refurb appletv is like $279 and a refurb mac mini is around $250 more. Any thoughts on which small apple device to buy?