In the past few weeks, WooThemes has released a few free WordPress themes that I recommend you to take a look at:
Snapshot
Snapshot is the framework-equivalent of their own showcase and can be used for either a photo showcase, portfolio or design gallery.

Typebased
Typebased was designed by Armono Wibowo and it is a very clean and elegant [...]

Arthemia Premium was recently released by Michael Hutagalung and as the name implies, it is the premium version of his very popular free theme, Arthemia. The main difference between both themes is the theme admin panel available in Arthemia Premium, which can be used to easily modify and customize your theme. From assigning category colors [...]