I recently presented at Philly Emerging Tech for the Enterprise on the benefits of abstracting CSS with Sass and Compass. While I don’t thoroughly cover every feature available, the session is almost entirely a live coding session, so it hopefully shows how easy-to-use and powerful these tools can be.
My newest post on the Sencha blog covering the wonders of SASS and Compass. Includes a full getting started guide and covers some of the techniques we used in developing the themes for Sencha Touch.