I'd suggest torrents personally. They're great for bulk uploading, whereas something like rapidshare is a bitch to use unless you're prenium member.
Here's a guide on how to upload a torrent:
http://www.ehow.com/how_2210514_upload-torrent.html
I can't wait to see what you've come up with, it sounds like a great project. Have you aimed to create a theatrical feel and a flowing narrative in each seperate movie (i.e beginning, middle & end)?