Two Column Themes
Natural Power is a two column theme, widget ready, that comes with four different colored header graphics that can easily be changed in the options panel included with the theme.
Blue Block is a two column widget-ready theme. The theme comes build in with banner ad integration. The content are is quite smaller compared to other two column themes.
CheckMate is a two column theme with 10 widgetized areas. The themes comes with 7 color options.
Out of the Box is a two column widget ready theme. The theme has a widgetized sidebar and footer area along with Gravatar support for WordPress 2.5 and above.
TechJunkie is a two column widget-ready theme with 4 widgetized areas including 3 in the footer. The theme comes built in with Gravatar support.
Whisky Air is a two column widget-ready theme which does not make use of any images. The them uses simple dotted grey lines, justified paragraphs, easy-for-the-eye headings and titles.
Three Column Themes
Wolf is a 3 column black and gray theme featuring wolf photos in header and footer. The theme is widget-ready and supports Gravatars.