I recently bought a new 17-35 for my D700. However, it had the squeak on the focussing motor that has been observed by others, so I returned it and a replacement was promised. The dealer has now told me this was their last one and it is discontinued. It can be repaired by Nikon. However, they have the new 24-70 available. I am tempted to switch to that. I appreciate that it's larger, has a different range but with some overlap, etc. I'm happy to live with a widest angle of 24mm and get the much wider zoom later if I really need it. What I'd appreciate is a pointer from users as to the image quality of the 2 lenses. The 17-35 had rave reviews, but I wasn't blown over by it at the edges wide open and there was obvious distortion at the wide end. The 24-70 seems to generate equal fanfares, but is it as good as they all say?