SuperBlog

Light and clean theme for personal blogs. Three column, widget ready.
HalfCircle

HalfCircle , comes with theme option, embedded flickr widget to display your flickr image and other features.
Sextant Globe

A very simple free WordPress Theme 1000px wide with 1 Sidebar and an Option Page to populate the Footer. 
5 Free Sport WordPress Themes

As spring progresses and the weather

More at: http://weblogtoolscollection.com/archives/2010/04/13/wordpress-theme-releases-for-0413-2/