I knew that Gmail can accept big files. Because there is a contest that can recive video files in the mail. SO, maybe if we try to cordinate the day to upload. Because the mail is big but not infinite. .
At least for upload the previews.
That's relivant how? Well if you want to use gmail to preview videos be my guest, but its not very professional if your leading a project with many people assisting with it. Go get yourself a cheap server (costs a few bucks) and set up ftp on that.