I love my 100L and 100-400mm. But I've been lusting after the 70-200mm F2.8 IS II. I bought the 100L as a replacement for my 60mm macro when I bought a 5D. I love the 100L for macro (which I don't do much of), but I don't like it as much as I thought I would for portraits or as a walk around lens. My 100-400mm is great as well, but I think I'd be just as happy with the 70-200mm and teleconverters. I use the 100-400mm mostly for airshows, the zoo, and wildlife.
Most of my shooting is of our 20 month old daughter at the park, the gardens, etc. I have also been considering starting a business shooting kids portraits. Do you think that I will be happy with the 70-200 II? How much will I miss the 100L and 100-400mm? I would eventually buy another copy of the 60mm to do some macro stuff. I really miss how compact and light it is. It worked great as a walk around too.
Thanks for any advice. I love this forum as a place to bounce ideas around. Even if it's the same ideas over and over sometimes.