I want promote a product with ads. Please... help me!

Hello! I'm newbie here, so threat me gentle

I want to promote a product to sell using an affiliate system of jvzoo, so I'm basically selling someone else product, for example the SEO Omega one: SEO Omega

So my question is which ads networks with a good feedback and price are out there to promote my webpage and be able to win with the commision?
I heard of course of adwords, but I think is too expensive based on the EPC of the product I want to sell and the CPM of adwords for my campaign. It just don't give me almost any profits ( I calculated that in average I need a thousands clicks to made one sale).

So, what other options are there? I heard also of Affinity.com Advertiser & Publisher Solutions but I don't have any comments on that one, Did someone of you guys used? It was good? It was a good fit for certain products only (for example good for books, but not for wordpress plugins)? Or was a more general thing?

I really appreciate your comments and experience, I hope to be one good marketing guy some day as I think lot of the people here are.

Thanks!!