A couple of other stabilzation techniques -
The Joe McNally Grip
This really only works if you use your left eye on the viewfinder. Joe's technique is to use the left sholder and left hand to brace the camera against your body. I learned this last year and have started using it quite a bit with great success.
The string "tripod"
This is also a nice little trick to stabilize your camera.
This link covers both of the above - Prevent dSLR Camera Shake With These 3 Techniques