Beast Blog is a dynamic, powerful theme with better accessibility, SEO, plugin and ad support besides other features.
Slider is a playful theme, full of javascript effects, for WordPress versions 2.1 and higher. It’s a simple three column, brown and yellow theme, and supports widgets in the sidebar.
RockinThemes.com has just released RockinSoft3Col, RockinMinimal 2 Column and RockinMinimal 3 Column.
Earthling2 is a 3 Column Widget ready version of Earthling by headsetoptions.org and MandarinMusing.
QGrey is a two column theme featuring a grey and blue style with an old looking pillar for the sidebar.
Pinkline is a 3 column theme by GPS Gazette with two widget ready sidebars.