THe V700 is amazing for the price. The quality with larger formats (120, 4x5) is the best you can get without going to a drum scanner.
Since I just got my Leica, I haven't started scanning 35mm yet except for
this shot, which was scanned at only 1200 dpi. 35mm film needs more, IMO, at least 2400dpi or 4800 dpi.
Here's a tip: Do not use ICE. Spot your results in PS, and retain the integrity of your scan. Scanning goes much quicker as well...
Also don't forget that scans, no matter how well the focus is, are slightly soft and need some amount of sharpening. I always do the minimum amount necessary. It's a very similar situation as with RAW files from digi-cams.