Denise,

Are you sure you want to sell the 100-400? I see you post a lot of wild life pics.

I'd agree the 85, 100, and 135 appear to be redundant. Maybe you should sell the 85?

Then keep 17-50 for wide to normal, 100 for macro, 135 for amazing performance and bokeh (I couldn't be too biased on that one, could I?), and 100-400 for wildlife.

Dave