Simple Red Grunge
 
Widget-ready, gravatar-enabled theme subtly combining a neat and clean theme layout with some grungy effects
Standa-Matic

Left sidebar, 340px wide and widget ready. widget ready footer, 3 Footer Bars (Left-Middle and Right)
Earthly 

Earthly incorporates a color scheme designed for sites that require an eco-friendly or earthy theme.

More at: http://weblogtoolscollection.com/archives/2010/03/18/wordpress-theme-releases-for-0318/