if you want something real cheap I'd just try to creak something heavy that would hang down about a foot from your camera (firmly attached, not like by string or something) which would probably make holding it with the handle a little smoother. I've never actually tried that I just thought of it... so you should do it and let me know if it works! word.
obviously you want to film as good as possible, but with after effects you can do some pretty great stabilizations in post, its done wonders for me in the past, especially since i shoot hd but make movies in sd so zoomings not a problem