There's a brand new Avatar featurette online, which explores the military technology that humanity brings to Pandora.
Jim Cameron and his cast and crew (including Weta's Richard Taylor) explain and explore some of the nifty (and, in some cases) huge pieces of machinery that are used to explore the place.
Of course, this is Cameron, so the human government is naturally A) obsessed with a natural resource (in this case, fabled sci-fi macguffin Unobtanium) and the weaponry it will use to get at it even as the Na'vi try to protect their home.
The usual warning applies - there is some fresh footage to be found here and while no one really goes into the plot, you can definitely see a few spoilers hanging around...
Take a look and let us know your thoughts!