Before you promote your site, you want to have some substantial content there. Write several product reviews. Have at least two to three in each category you've created. You may also want to create categories for articles, news, and commentary about your topic. The more content your site has, the better. And the great thing is that while you're writing all this, the search engines are getting notified automatically, assuming you turned on the necessary notifications.
You should also make sure you aren't competing with your own affiliates for eyeballs. Any marketing channels you're using, such as search engines, content sites or e-mail lists, should be off limits to your affiliates. Put marketing restrictions into your affiliate agreement and notify partners immediately. It's your program--you set the rules. Or, if you prefer, you can let your affiliates run the majority of your internet marketing.