rmalarz wrote:
First off, keep the lens with mold away from any of the other equipment. See if Nikon will repair it, as it is a very good lens. Secondly, I'd definitely keep the D700. I've had mine since Jan. of 2010. It's a very good camera. Between the D7100 and the D5100, I'd keep the more recent. I'm not familiar with crop sensor cameras. Thus, the more recent comment.
The 24~70 is a really good lens and thus looking into getting it repaired is a good idea.
--Bob
Bob, the D7100 will focus af lenses, the D5100 does not as far as I know.