Thesis is a very famous search engine optimized theme for Wordpress. Here is a Thesis theme converted for blogger. This is a free 2 column blogger template which look neat. If you are using Blogger for your blog, this will be a real nice theme.
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Adsense Search Customization
You can read more about the Theme, Configuration, customization etc here
I tried and made the changes in blogger you can see it here - http://krishnan-blog.blogspot.com/, but I could not change the Facebook like button right to the post title. it shows likes of the theme creators home page.