You'll find what you need in some parts in the following:
http://www.pornication.net
http://webmasters.streamray.com
http://www.privatefeedscash.com
http://www.247live.com
http://www.almightycontent.com
http://www.2lipspartners.com
http://www.anywebcam.com
All free, all with upsells and nice little earners.
We also use
BigSisterLiveSex.com from
EuroRevenue.Com, as the whole live brothel thing works wonders from the members area as an upsell and they have heaps of tools to make sure there is a bunch of content for peeps before they decide to upsell.