Simple two column WordPress theme
Three column, gravatar ready theme with two right sidebars
Two Column widget enabled minimalist wordpres theme
Inspired on Wired Magazine look, Clean News is a theme with a large content area, but it also has a wide sidebar that allows to display even a 300px width ad. Home and single sidebars are independent, both widgetized, so you can easily choose what and where to display. A lot of white space to make your content stand out, low weight and no plugins required. It will load in the blink of an eye.