A good way to boost your organic results in Google is to feed your products to Froogle.
At http://base.google.com you can create an account that allows you to individually create or use an xml feed to place products in Google's product search engine.
Not only do people agressively use the Google product search engine, if the search term is relevant enough Google will place certain Froogle results in the organic results and highlight them, usually at the top of the results.
This is extremely powerful!