Although I have some other cameras, I'm looking to try out a Nikon DX format DSLR and have a wedding to photograph for a friend next year.
I'm looking at a couple of bodies (D90 or D300s) but am not sure about which lens to opt for - the 18-105 or the new 18-200 VR. I'm experienced enough to understand that the 18-200 will be soft(ish) at the long end and exhibit some distortion at the wide end. For the wedding I'll use a separate wide-angle as well and probably won't be shooting longer than about 80mm (120mm 35mm equivalent) so either lens would give me the reach. I'd hope as well to shoot between f5.6 and f11 so I'll be avoiding any extremes.
Given these shooting parameters, I'd like to ask experienced Nikon users whether they think the 18-200 would give good enough IQ for decent size prints (up to 18" x 12" say). I've always wanted a good walk-around lens and would like the 18-200 for use after the wedding but don't want to risk ruining my friend's big day by lower quality images that he can only print out at small sizes.
Any thoughts would be appreciated