I ended up getting a refurbished Fujitsu fi-5120c on eBay. I set it up this evening. It works fine through a USB 2.0 hub and seems to be bundled with everything one could need (when using the USB interface). The scanner itself looks new, and the Windows Control Panel indicates it has only been used for 210 pages.

It does come with rather old versions of the bundled software (Acrobat Standard 6.0, Kofax VRS 4.10, ScandAll21 4.3), but I was able to convert 6 pages of 4 column lists of names duplex printed, ~ 10 point Helvetica on thin newsprint-like paper (pages torn from a magazine), scanned duplex at 300 dpi, to an OCRed PDF very easily (with no manual intervention and no errors in the OCR). I'll probably use higher dot pitches for things that I might want to print again. I don't know if the benefits of upgrading to later versions of the software are worth it for my needs/wants just yet.

I also got a 2 meter Adaptec HD50M to HD50M cable and a Tekram DC-390U2WE PCI SCSI card to go with it, but so far it doesn't look like I'll need them. There might be a speed advantage to using SCSI, but I don't want to mess with it right now.

Cheers,
Scott.