Professor, thanks. Yes, I am in that immersion process right now. I am ready for paid promotion. In fact, while there is plenty of competition, my little research reveals that most of the people are using FREE promotion, while those that are earning real oney are buying their traffic.
I have a domain biz, so I have plenty of them, but suprisingly only 3 casino domains. I wll start acquiring some. And you are right, server space is a non issue. I could have 50 casinos up with their own domain this weekend, if you said I should. 
With respect to which paid adverts to use: email, banners, popunders, any advise to begin with? I know the exact one will come as a result of trial and error but if you were to start knowing what you know now?
I even have my own pay-per-click software that I can roll out to start my own program if necessary.
Mold me.
(Thanks for your time)
profezor