Dan,
We just finished developing a CMS that was designed to fill in the gaps between people who liked SiteDepth, and people who couldnt afford MAS. There's a feature list longer than my arm, and it was developed specifically for the adult industry. New features are being developed all the time, and many upgrades will be free. If you have any questions about it, hit me up on ICQ. Demo is available online.
http://www.xxxcms.com/