The V700/750 is well worth considering, especially if you rarely print larger than around 16x20" from a 6x7cm frame. You can get excellent quality 12x16" prints and smaller from MF scans on the V700.
A friend of mine was looking to buy a Nikon 9000 for MF (6x7) scans. I'd just bought a V700, and he had access to an 8000, so we decided to do a "real world" test. We compared his Canon 9950F with my V700 and a university's Nikon 8000. What we compared was the same slide scanned on each scanner, processed then printed a 4x6" crop from a 16x20 image. We were interested in the final output. We tried the native scanning programs and also Silverfast on the two flatbeds.
There was a clear difference between the 9950 and V700, with the V700 being noticably sharper and getting better shadow detail (from a slide scan).
The final print comparison between the V700 and the 8000 was very interesting. They were very closely matched, if anything the V700 looked slightly better. Now, this may have been down to not having the glass film holder on the 8000, but then we did just use the standard V700 holders. Yes, sample variation may also have been an issue.
The end conclusion however, was that the Nikon may be ultimately slightly better, but up to "normal" 16x20 prints from slides, the difference is slight. So slight as to be hard to justify the cost differential.
Keep the CS V for 35mm. Get an enhanced holder with ANR glass, or even a wet mount kit for the V700/750 and you'll have yourself an excellent scanner that can scan panoramic 120 formats and film up to 8x10" film. For that real special scan, send it out. Save the difference and spend it on more film!
