I found out about the Blueprint CSS [1] framework the other day and it seems really cool. The framework uses a grid layout as its base with 24 columns and as many rows as needed. Columns and rows can overlap, much like ordinary tables in HTML. Just like the YUI CSS, Blueprint CSS resets the browsers stylesheet rendering so that different browsers will render the layout the same.
Forms can be quite troublesome to get nice between browser but blueprint fixes the layout very nice. Another nice feature is the typography support that is to support best practices. The CSS also comes with a print stylesheet. The default layout uses a fixed width, 960px wide, but there is a fluid version available as well, which can be cloned using git:
git clone git://github.com/Montoya/blueprint-plugin---liquidgrid.git
Hope I will get a chance to use this in a project.
// John