Another Question for the clickbank or affiliate guys out there???

Ok so I got some good information from this forum yesterday. I have a few more questions about clickbank or I guess affiliate selling in general?

I have a few things in mind. I have all my other issues all sorted out, Keyword research, Affiliate item picked (plus I may have my own product soon too), ideas for SEO and traffic generation.....

Now this brings me to how do you guys get to the sales page? Do you link from your article or promotion source to another landing page (your own Sales Page) and then onto the products original sales page? Seems kind of like over kill to me and more of a chance to lose the customer? Or do you link from your article or promotion source to the original sales page of the product, bypassing a landing page?

And I would appreciate it if someone could point me in the right direction either an already created thread or another site about the do's and don'ts of writing a perfect sales page or landing page?

Thanks for all the help. Just trying to get all my ducks in a row and make sure I have some decent understanding as I want to jump in with both feet this week and get moving.

Thanks,

Matt