On some other forums, lately there has been quite a lot about what's the best theme to use and in many instances they are talking about "bought" themes.
There are numerous
free themes available in 1,2 or 3 column configuation. All that is necessary is to Google Wordpress Themes and be prepared to spend a lot of time browsing the ones that are available.
We use mainly a 3 column theme called RockinBizRed by Nathan Rice. It will not suit everyone but we have found it easy to use in posting and monetizing. The blog for NewbiesOnTheNet uses this theme:
http://www.newbiesonthenet.com/blog.