I have had a few conversations recently with people asking about tools and resources so I thought I would put a post together pooling a few things together.
Also for those who haven't already come across HTML5 boilerplate, take some time to browse through the source.
JS for people who have done C#
We use YUI Compressor in our build scripts to minify the CSS:
NAnt is a free .NET build tool. In theory it is kind of like make without make's wrinkles. In practice it's a lot like Ant.