The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels.

The site even provides a download bundle (180 KB) → Zip contains PDF grid paper, templates for Fireworks, OmniGraffle, Photoshop & Visio, and CSS framework with demo HTML.

[Fantastic work. Stumbled on in soxs’ Flickr stream]