Originally Posted by The Ghost

http://toomuchmedia.com = carma
http://mansionproductions.com = mas
http://sitedepth.com
Awiz
http://adultwebware.com

Those came to mind right away for cms. Most of them have quite a bit on the back end. Do a search on GFY for cms. I know there's a few that are less intensive that may do what you need