networkable scanner suggestions

Try nessus. I think it's free.

lbolek: Um, I didn't mean Network Security Scanner, I mean a photo/document scanner, one that can send the pictures directly to an email address.

I don't know of anything standalone capable of that. You'd have to look into some multifunction system (printer/scanner/fax/copier combination). HP has some such devices, and the cheapest I could find is the brother mfc-410cn, with a builtin network adapter. Xerox and minolta have such products a swell, but those are meant for large offices and far too expensive. I suggest you take a look at that brother, but before buying, make sure the scanning function is also available via the network port (Often the you get only printer drivers which work over the network).

A cheap one that only works with USB scaners and the sending to SMTP should be addressed by the scanner software.
For sharing a scanner I'll recomend Keyspan USB server, works with Win 2K & XP and MacOS X .

I've just got mine and now Im sharing my Cannon 670U on the LAN, install the USB server, then on each computer you want to access to the sacaner you'll need to install the Keyspan aplication. Start the aplication, the select the scaner and use the conect button.   Win XP will detect new hardware,(your scanner) and you'll only need to rsinstall or install de scanner software.

BTW the scanner can only be used by one client at time, and need to be "disconected" from the PC that's using it.