TRIPOD... /ubbthreads/images/graemlins/grin.gif I stole the idea for a "Sniper Saddle" from SniperCountry.
Basically, take an old camera tripod (or you can pick up a cheapie at Walmart or Target or wherever) and attach a piece of PVC pipe that had been cut in half (to get a U-shape)to the top of the camera platform. Line that with some neoprene (I used a double layer of old mousepads). A can or two of spray paint to cover the shiny metal legs later, you've got an uber-adjustable camoflaged rest. You can adjust heights from nearly prone, to sitting, to standing. If you monkey with it a little, you'll find the right combination of support/stability, and still be able to pan/tilt to track along on those running shots. And it all collapses down into a very small, lightweight package. Throw a loop of nylon webbing around it, and you can sling it over your shoulder for packing it in or out. It's a pretty slick idea, honestly....