This is another new plugin from the LBAK team licenced under the GNU GPL v2.
Download link: http://wordpress.org/extend/plugins/lbak-google-checkout/
Description:
The LBAK Google Checkout plugin is aimed mainly at small projects that just want to sell a few things on their blog through Google Checkout and don't want too much else apart from ease of use.
This plugin is really easy to set up and you will be selling your products within 20 minutes of installing it. It offers:
An easy way of integrating Google Checkout into your WordPress blog.
An easy way to add products to a database on your blog and display them in your blog posts with short codes.
Customisable settings and CSS to help you get the look and feel that you want.
An option to totally customise how your product looks using the Google Checkout API if you feel comfortable doing that.
Very little excess and clutter.