So I just did a little hacking on the Greymatter source code so now I have some additional functionality:

• In the configuration, there’s a spot where you can specify your Amazon Affiliate ID (for link creation)
• When you add or edit an entry, you can hit CTRL-SHIFT-E to create a link to an Amazon product by entering the ASIN for the product
• Links that you add to other sites, etc., all open in a new window by default

I’m pretty pleased. This makes it much more usable, especially for the way I blog.