The DarkMood Theme is a free dark greenish theme 980px wide with two Sidebars and an Option Page to populate the Footer.

Expressivo is a three-column theme with two righthand sidebars – going to a single sidebar on single posts and pages. With Cufon embedded fonts for post titles, threaded and paged comments – you can

More at: http://weblogtoolscollection.com/archives/2010/02/27/wordpress-theme-releases-for-0227/