James Duncan Davidson has started a great series of recipes on deploying Rails applications. In Real Lessons for Rails Deployment, he examined the different options you have and some of the pitfalls you should watch out for.
In Deploying Rails with LightTPD, James goes specific and tells you exactly how to get Rails going on lighttpd using SwitchTower for deployment.
This is great stuff and with more than a couple of deployed Rails applications under his belt, James is in a great position to share his knowledge. Cant wait to read the further installments. [Riding Rails]