RE: Turnigy H.A.L. (Heavy Aerial Lift)
I decided to buy this QUADframe GoPro 2-Axis Gimbal for $70 from [link=http://www.rcdude.com/servlet/the-2410/QUADframe-GoPro-2-dsh-Axis-Gimbal/Detail]RC Dude Hobbies[/link]. The new V2 version is a completely new design with less small parts like screws, washers, much more easy to assemble, and much better stabilization.
The first 20 seconds of [link=http://www.youtube.com/watch?feature=player_embedded&v=_6jLwZylhd8]this video[/link] shows how the gimbal compensation works with the NAZA.
For a relatively low cost, I can take advantage of the built-in NAZA stabilization with a well designed gimbal.