Emastic is a very complete CSS Framework integrating various CSS construction techniques like floats, absolute positioning, complete freedom of your default width, extra usability with em based grid system plus possibility of fluid columns and extra % based grid system and many more features. Then the question is why build another grid system.

The Golden Grid is a web grid system. It 's a product of the search for the perfect modern grid system. It 's meant to be a CSS tool for grid based web sites.

Illustrator 974px Grid System (12)