Start here. http://keithclark.co.uk/articles/pure-css-parallax-websites/ http://keithclark.co.uk/articles/pure-css-parallax-websites/...

.. http://lmgtfy.com/?q=vertical+parralax+css+template

Here's a demo and a tutorial: http://callmenick.com/post/simple-parallax-scrolling-effect

I was just going to comment how nice the design is on this page. The parallax is very fluid and I love the 3-D line/polygon thing going on...