I would recommend getting this plugin for anyone who wants a simple way to productize their website with Amazon.
Thanks for the positive feedback. Your tip about using the ASIN as a meta tag is useful - I had not thought of that myself.
If you want to target a specific product you can also use embedding code with the plugin, but it is a less convenient way to do it.
You can also restrict the product search to specific categories, eg books as a way to restrict the results. There is a bit of trial and error I have found with Amazon search.
I am impressed with Phoca Gallery and Jan the developer. I have a website with hundreds of categories and over 5000 individual jpg images which Phoca Gallery is supporting. Not only did the software handle my site with very few problems but when I had a problem, Jan was very quick to help me resolve the problem.