Since getting lenses with internal stabilization, I've left my tripod behind (but not the monopod). This had been such a change for someone who was a religious tripod user.
Well, I got mine back out today to make sure that I wasn't "missing" something. The result? The weight of my rig still vibrates too much (even with mirror lock-up and self timer) that I didn't really gain anything over using IS on a monopod.
What I did loose was several good shots because I was setting up and "trimming out" the head. And I consider myself a speed demon with my Benbo tripod. I even tried using my trick of using really slow speeds to minimize using those bad tripod speeds (1/4 second to 1/60) when vibrations are most evident.
Long story short - here are some from that outing - nothing too terribly exciting. Time to put the tripod away again