I'm doing some work for Boobsville.com (
www.boobsvillebucks.com) right now. I've been in their members area and jesus christmas if it isn't GIGANTIC. So many full length movies and tons of exclusive photos. If you're looking for retention they would be awesome.
They will have hosted movie and thumb galleries soon as well as a slew of advertising materials very shortly.
25 years of Big Tit Videos all being digitized for web... they are encoding 20+ scenes a week.