Short of trawling through the whole lots of agencies, which allow you to submit CD's instead of uploading files?
I know SnapVillage does. I'm just getting fed up of checking my computer FTP'ing files! I've recently become un-exclusive with iStock, so I'm trying to get my portfolio uploaded to a few other sites doing well, but if places would accept CD's it would make me consider them, even if they have a lower earning potential.