Have you looked at the Nikon Cool Scan?
In the digital camera forum a recent discussion about film scanners may be of interest.
Bob
I need to scan several thousand old 35mm slides that have some historical value (Saudi Arabia 50 yrs ago). What would be the most expeditious and cost effective way to tackle this? Any favorite scanners and/or adapters that I should consider? I would probably have to do some color correction, too.

Chowhound
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TechRepublic