I'm with you on the L-Series vs. DO. The lens length, color and extra 100mm are what put me into the 70-300 DO IS instead of the L series. The 70-300 DO is much less conspicuous when shooting city candids or local sports events than the L-series.

My other lenses are the 24-70 f2.8 L and the 16-37 f2.8 L. I don't feel the need to get anything else (except maybe a fisheye) for some time.

-Zeke
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