Seeking good programs for digitizing all our addresses

What's your preferred program for typing up lots and lots of addresses? My mum's got multiple address books and they'll have to be typed up eventually, a block at a time. I don't really want to go with the contacts function of Outlook/Hotmail/Live, because it requires signing in and the password could be misplaced. I also would like to use something that could ideally export the addresses to another Outlook/Hotmail/Live or Gmail account.