Here's my two recommendations:
Flirt4Free - excellent affiliate department that's always ready to help, solid promo tools such as live streaming ads, i frame ads, more geeky tools such as performer API, html API, one click integration etc.
They're also by far the best in the gay niche if that would be of interest.
Visit-X - if you're looking for a solution for the German market. This is one of the very best cam sites ever, strongly focused on German Amateurs. Lots of excellent promo options and a front end that sells.