Plato is a simple yet optimized Wordpress theme packed with features. It uses colors and generic images so it can be used by a multitude of businesses, industries, or niches without needing customization.

Copyblogger is a simple 2 column theme and is available for download at: http://www.pearsonified.com/themes

ModXBlog is a sharp 3 column theme developed by justdreamweaver.com

Amazing Grace is a lightweight, super-optimized WordPress, and uses a 3 column layout with lots of extra features

UltimateBlogger is a sharp 3 column theme brought to you by the good people at justdreamweaver.com

iNove is a nice 3 column Wordpress theme using a black, gray, and white color scheme.

DevArt is a wordpress theme based on the DeviantArt.com website.

Xtremeblogg is another nice 3 column theme from justdreamweaver.com

CoffeeBreak is a nice and clean 2 column Wordpress theme.

BloggingTips.com Evolution is a nice theme that’s built to be customized.