auto customers download ejunkie example free host individual initial link list mailing message offer paypal plus product products responder sharing sign signing smart whereby worried

I would like to use Ejunkie to host many individual products but I want to offer one for free to my initial customers. Is there a way whereby they can get a download link for the free product without having to go through paypal? Example: They sign up for my mailing list, they get an auto responder message with link to download. Possible?

Plus, is it possible to change to download link? I am worried about people just sharing the link and not signing up for my mailing list. Oh, you guys are smart. There must be a way to do this right :)