Talking about Fujitsu's still going strong - we have one that is six years old (only does black/white scanning) and it still works. Of course, if the PC it's hooked up to dies, I don't know where I'd find a SCSI driver for a board that old!
What I need to do is this:
I have 11x17 plots of CAD files. They have been marked with colored pencils (depending on the specific sheet, between 3-6 different colors). I have to scan those files, zip the scans, and email them to a company in Asia. Some days there will be 100 to be done, some days nothing. I think a 300dpi scan with minimal color depth would be sufficient. For this, I don't even need perfectly accurate color because the colors are very different - blue, green, red, yellow, brown or purple, so even 256 colors would be enough. I could probably get by with 16, but that might be pushing it.
Since this will become someone's "do this in your spare time" activity, I want an ADF so that person doesn't have to do anything more than dump in the pile of prints and hit the button. If the ADF can handle at least 30 sheets, that will be good enough. The software will need to just save out the scans in JPEG or TIFF and give each one a unique name.
Now, to be realistic, I know as soon as I get this thing, people will be coming out of the woodwork to have things scanned, and I fully expect to be asked to scan text documents to get OCR at some point. None of the scanners I've looked at would seem to have a problem with that.
The office copier/scanner thing won't work for me because ours don't do color.
The software is an issue, which is why I'm kind of leaning toward the Kodak i260 because it comes with Kodak Capture software ("lite" version). I'm still looking into exactly what that does or doesn't do. For sure I don't need anything that is a "document management" package.