Free WP theme recommendation needed

I have a page currently at marketcoding.com that I am attempting to build a new WP site around.

The purpose of the site is to provide pictures of forex trading charts as a ‘teaser’ to make the users want to look at the other components of the system by clicking on it.

Many of the systems will be free and may come with mulitiple descriptive elements, a picture of back-testing results, source code, and other files.

There should also be a fair amt of side and bottom content on the front page as well as a robust top bar navigation area for adding many additional items.

Ideally, each day would feature a new chart, which when clicked, a user could get the details of.