I would like to recommend you to get an older mini, not a brand new one.
You dont need the power the new ones have and since you want to use external storage you dont need the internal storage either. If something goes wrong then you wont be set back as much either.
A 2010 mini should be plenty for your needs. A small ssd for the mini would also be good since it would boot up quickely then and that part of the system is not as vulnerable to shocks and heat
As far as heat goes I have no idea and im not planing on trying it out.
But seriously, apple tv and a NAS would do what you want right? music tv shows and movies. Unless I missed something. Just saying
Good Luck
Edit: Saw you ment a dual 1tb inside the mini. You can do that with a 2010 aswell although a 2011 would be better. Nevermind partly what i wrote above then.
You dont need the power the new ones have and since you want to use external storage you dont need the internal storage either. If something goes wrong then you wont be set back as much either.
A 2010 mini should be plenty for your needs. A small ssd for the mini would also be good since it would boot up quickely then and that part of the system is not as vulnerable to shocks and heat
As far as heat goes I have no idea and im not planing on trying it out.
But seriously, apple tv and a NAS would do what you want right? music tv shows and movies. Unless I missed something. Just saying
Good Luck
Edit: Saw you ment a dual 1tb inside the mini. You can do that with a 2010 aswell although a 2011 would be better. Nevermind partly what i wrote above then.