Someone on Cinema5D had a question about micro-jitters and handheld in general. I've been trying to make it clear the importance of weight on your camera, but maybe text doesn't do it...
Here are examples from a shoot, shots that I got in-between takes, illustrating how fluid and stable the image can be if you create a weighty, balanced rig.
I'm using my hybrid Redrock and Zacuto rig which weighs 14lbs with the camera and a lens set to it (or around about 14 to 16lbs), no follow focus-- pulling focus by hand-- and no monitor, viewing the Canon 7D's LCD with my head craned... it hurts, but do what you have to. The lack of a proper way to view while I'm shooting is what's really getting me, but that'll be corrected soon and it'll be that much more stable and fluid.
I'm comfortable with operating handheld up to about 300mm.
Micro-Jitters are the bane of the DSLR's existence. Even pulling focus can cause the image to erupt into a frenzy of shivers and it's a bit of a doozy to correct! But, you can get there.
Hopefully this helps some people.