Home Sharing???
I am really confused as to what your intent is. If you are wanting to have your movie stores (on your external HDD) available to watch on you primary TV, then you have what you need.
I was incorrect in my last post, Home Sharing CAN be done over ethernet (http://support.apple.com/kb/ht3819).
I suggest you establish your Mac Pro as your primary iTunes repository with the external HDDs of movies. Then, uncheck the box as I suggested above, so your Mac Pro doesn't "ingest" all of those movies and produce duplicate copies inside it's Movies folder.
If you do this, and enable Home Sharing, you can view all the materials on your Mac Mini that reside on the Mac Pro iTunes account. You can also use the Mac Mini to rent movies, watch Netflix, Hulu, and more. All of that without doing anything extraordinary such as purchasing super long HDMI cables and such.
Best of luck!
PS I used to do the "alias" thing with networked drives to my Mac Mini. You must create an alias for each of the external HDDs and then place that alis in your Movies folder under the username on your Mac Mini. Then, Front Row can see them. Again, I "used" to do that until Home Sharing. Now, I share a single iTunes account amongst all of my devices.
I am really confused as to what your intent is. If you are wanting to have your movie stores (on your external HDD) available to watch on you primary TV, then you have what you need.
I was incorrect in my last post, Home Sharing CAN be done over ethernet (http://support.apple.com/kb/ht3819).
I suggest you establish your Mac Pro as your primary iTunes repository with the external HDDs of movies. Then, uncheck the box as I suggested above, so your Mac Pro doesn't "ingest" all of those movies and produce duplicate copies inside it's Movies folder.
If you do this, and enable Home Sharing, you can view all the materials on your Mac Mini that reside on the Mac Pro iTunes account. You can also use the Mac Mini to rent movies, watch Netflix, Hulu, and more. All of that without doing anything extraordinary such as purchasing super long HDMI cables and such.
Best of luck!
PS I used to do the "alias" thing with networked drives to my Mac Mini. You must create an alias for each of the external HDDs and then place that alis in your Movies folder under the username on your Mac Mini. Then, Front Row can see them. Again, I "used" to do that until Home Sharing. Now, I share a single iTunes account amongst all of my devices.