Automated scanning with a photo scanner

Mostly cross-posted from StampWants forums:

Has anyone explored automated stock-card scanning using a photo scanner
with an auto-feed?

I'm just beginning to explore this, but it looks like the Hewlett-Packard
C5280, C6180, and D7160 have "4x6 auto feed trays" for batch scanning of
photographs. If a photo, why not a G&K stock card with a stamp in it? I
prefer 106BKs (as Rodney can attest): they're 5 1/2" x 3 3/8", which is
close enough that they would probably be natively-supported by the
scanner (see http://www.subwaystamp.com/prodinfo....ber=ZGK106CK/O)

We'd have to make sure that they wouldn't be too thick, gum up the works,
destroy our precious stamps, but it could be a massive time-saver.

Once the images are scanned, the files created, and the images numbered,
they could all be cropped (or whatever) in bulk using third-party
software. It would make posting inventory much easier!

I'm wondering if anyone has walked down this road before, and if they
have any scouting notes.

--
Joshua H. McGee, Los Angeles, California, USA
Member: APS, ATA, ISWSC, AFDCS, MBPC, MCC, BPS
President: http://www.penguinstamps.org
Trade?: http://www.mcgees.org/stamp-offers/