I have the 70-200 2.8 NON-IS and love it. A part of me wants to sell it and get this. I definitely don't need it... but would LOVE to have it
IS definitely helps. I opted for the 4.0 IS over the 2.8 non IS as they're close to the same price. This one would be optimal, but like you, I'd love to have it but really don't need it.