Can I stream movies from external drive to the new Apple TV?
My iTunes music folder and all of my movies (in separate folders) are on an external drive.  In fact, it's a NAS RAID box, but it's mounted on my Mac mini.

You just have to load the movies into iTunes.  When you do, they'll be visible to the Apple TV.  Of course, they have to be in the MP4/M4V favored by Apple.  If you want to watch AVIs, etc., you'd have to "hack" your Apple TV.  Haven't done this, but it sounds pretty easy these days.

Maybe we'll get an ATV Apps Store soon, and it will be easy to load other apps and stream all sorts of stuff to the ATV...