They don't seem to have a stellar reputation for colour fidelity, but since 99% of what I scan is grey scale or text that wouldn't necessarily be a huge problem.
http://reviews.cnet.com/scanners/hp-scanjet-4670/4505-3136_7-30535469.html
http://www.lordpercy.com/hp_scanjet_4670_scanner.htm
The trouble is I've never used one, or seen one outside a photo, and can't currently find anyone with one for sale. Looks to have been USB, not USB 2, which may mean slowish speed. Anyone know anything about them? Was there a later version?