OK, I have the CanoScan 8400F. It is 3200 dpi capable. I need a good interface for scanning. Of all the tools I have, about 1200 dpi is my max. I would really love something that would give me more control over the scanner. I want to be able to tell the scanner to scan top 50%, or whatever else I specify. Even 1200dpi is a very slow scan and being able to tell the scanner exactly what to scan would be great.