A GOOD camera arm. Period.

A GOOD audio set up.. without one you will hate the sound you may get.

Justin is really the dude to talk to about this stuff.. but there's a remote controller that we use that mounts on the camera arm. It is single finger controlled and operates everything from zoom to record and even manual and auto focus.. but I forget who makes ours. It is FANTASTIC.. you won't want to film without it.

(and with that the "shotgunning a beer" avatar is back.)