I just bought an old dell tower on ebay that I converted to a media server with Plex media server. I am trying to store all my media on it and stream it to my apple tv 2. the only problem is, it is not streaming fast enough and the video (720p) keeps buffering every few seconds. Any ideas on how to speed up the connection? I've heard that a faster ethernet card helps, but I don't know anything about ethernet cards. I'd appreciate any suggestions.