I just sold half of my gear to pay for the 5D3. I was left with the 50 f/1.4, 100 macro, and 100-400. I've been using the 50 as my walkaround lens, and just love the IQ. I'm kind of spoiled by it.
So I'm in the market for a general purpose zoom, with a taste for quality (tough spot to be in, on a budget
). When I want wide, I've found, historically, that 24mm is usually just right for me. I was eyeing the 24-105 as a great range, but just a little put off by the not-quite-stellar performance at 24mm. I have a feeling I wouldn't be happy with the 24-105 on the wide end, and adding the 24mm f/2.8 IS kind of puts me close to the 24-70 II price range...
Enter the 24-70 f/4L IS. While not a bargain, it might be closer to what I have in mind, IQ-wise, and be a bit more affordable, cheaper and more convenient than other combinations I've considered. I'd still prefer a 24-105, but I'm also likely to take the IQ over the range. I'm waiting to see test results, including bokeh.