what kind of film? just 35mm? or Medirum format? large format?
if your doing 35mm or large format(4x5, 5x7, 8x10) I would recommend the epsons, either v700 or v750, or whatever number they up to now. I would not recommend these for medium format though, they don't seem to be able to resolve dense detail in medium format.
If you're doing medium format I would recommend a imacon, they're more expensive, but the quality is unmatched unless your doing special drum scans.
I had a imacon 343 i got used, and the scans it made I could make prints 30" by 90" on my 6x17 positives.