I liked the first theme that I found - but without being able to change the blogpost background colour it was not suitable - a shame because it was savvy!! The Second theme was cool too - although the post pics were hidden. Several themes have been tried - Visual (too black although quite awesome), Gateway - the posts weren't in columns and Apostrophe which had the three columns but the pictures didn't show in the posts - cool for privacy but not so cool for a collection of information.
The search for a savvy cool web theme continues....
As much as four column themes are really cool - the background colour couldn't be changed.
To find the theme choices its simpler to google wordpress.com themes and the search option with choices can be found.