I am surprised I have not seen this asked yet in the Apple TV forum, seeing how frequent the 15" vs 17" MBP threads can be. (or maybe I just missed it, I hope not!) So anyway here is the situation. I have a mac mini set up as a 'media server' with all my music/videos on it. I am getting tired of watching all of my movies on the computer screen and would rather watch on my couch on the TV screen. So here fits the apple TV. Currently I have about 100GB of Movies and 60 GB of music. I steam all my music to my airport express so I see no need for sotring the music on an apple TV. That leaves 100GB of movies. Is it better to get the 160GB and store all the movies on the apple TV, or get the 40 GB and just stream everything? (in this case I would really need 0GB because I would just stream everything, I would also upgrade to full 802.11n if i go this route) So is there a good reason to go one way or the other?