We Run HP ScanJet 6300C's (later model but same deal) at work, and they've been more trouble than they're worth. I ran mine off SCSI as I was on NT with no USB support. Worked fine, but died one day with horrific graunching noises. The replacement arrived from HP and had a dirty scan glass. The third one is fine, but doesn't work with USB now I'm on Windows2kPro. The latest software I think is PrecisionScan Pro 2.02. That's what I'm on anyways, and it works okay.
Aq