Are you looking for a storage case, or a camera bag to take into the field? If it's the latter, why do you need to put the charger in it?
The Nikon site lists the 18-200 as 8 inches long, but I'm assuming that's fully extended. My new favorite, the M-Rock 517 bag, fits my d200 with the 180/2.8 mounted on it, and, for reference, the 180/2.8 is 7 inches long. The bag also holds my sb800, and two more lenses. I like the messenger style, and the access, and give it two thumbs up.
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