Have you really found the best sites for your visitors, or are they the best sites for you - ie the only ones that have suitable affiliate schemes?
I don't think people are daft enough to not realise that it's just an affiliate site designed to make money for you, not to do anything for them.
Wouldn't you be better off trying some different styles of site to find what works best before concentrating on rolling out sites?
It does look a bit dated and very cluttered.