Handcrafted CSS: More Bulletproof Web Design (Rough Cuts)

Flexible Web Design: Creating Liquid and Elastic Layouts with CSS (Just released)

Trascending CSS (Released)

Learning the Yahoo! User Interface library: Develop your next generation web applications with the YUI JavaScript development library (Released, for yui and some javascript)

I want them but don't have money.

Have a look at OOCSS: http://wiki.github.com/stubbornella/oocss

And CSS Discuss: http://css-discuss.incutio.com