For my home theater setup I have a Sony KDL 46z4100 TV, an Onkyo AV reciever and a Mac mini. Of course I would like to rid myself of the 3 remotes that it takes to operate my setup and I am looking at the Harmonys. So I have a several questions: 1. Can the Harmony turn on my mini and open the correct program (be it Plex or Front Row or any other front end media software)? 2. Can it properly turn off the mini (I had read that some people have problems with the Harmonys properly turning off their Apple TV's)? 3. Is there a way to rig my Newer Tech Mini-Stack external hard drive so it can be turned on by the Harmony? 4. What Harmony remote do I need? I really don't want to pay the $250 for the Harmony 880 if I don't need to. I have at the moment 3 devices that I need to control. Thanks for all your insight and help.