NETTUTS.com is having a give away of some free copies of the Packt book "Magento 1.3: PHP Developer's Guide" for anyone that comments on the post.
Magento is one of the most popular PHP eCommerce solutions available for web developers. In their own words, it's the fastest growing eCommerce platform in the world. Packt Publishing has generously donated a handful of copies of their latest Magento book, called "Magento 1.3: PHP Developer's Guide".
The book goes into the depth PHP developers will need to really get into the heart of Magento and create customized modules with advanced functionality to make it just what you need.