It's all about how much money you want to or can spend......
Unless you are filming to produce a true tv show then I don't think you need a $3,000 - $8,000 camera to capture your hunts.
I would start out with one of Campbell's outdoor packages. Outdoor Packages - Campbell Cameras
Here you can get your camera, mic, extra battery, carrying case and some other basic stuff for a decent price.
Now go get a good tree arm. I use the muddy arm. I really like it. It's $150 - $175 (I think).
Last thing you will need is software.....if you plan on editing your film.