I see someone mentioned it before, but I've been using the digiXMAS tool (
http://www.digixmas.com) for semi-automated submitting.
It takes a lot of the tedium out of the work, but you still have to select the category and enter in any captcha code if needed.
I've tried doing manual submissions before and it's pretty slow going. I don't think I would go back to doing them again so long as semi-automated tools exist.