We are probably one of the youngest video chat platforms and still working on the traffic/webcam models.
We tried to bring innovation by making this system social (profile based) with some social media features.
With our own traffic we established a PR3 ranking in 11 months, bounce ratio of 27-28% with an average holding time of 11 minutes.
We have some plug-ins that can be suitable for your member area. Here some examples:
www.chatgrl.com
www.tubeaway.com
www.mypersonalsexsite.com
We also offer custom clones sites like:
www.babesocial.com
www.riocams.com
www.thiswebcam.com
If you want to talk about this you can always contact me.