Changing Categories section

Hi Daniel,

Thanks a lot for this theme. It is a lifesaver for me, being new to web design.

I was wondering if there is any way to change the placement of the Categories section, or remove it entirely. I notice that the content sections and Categories look like every other widget, but cannot be moved around in the Widgets section like the rest.

Thanks for your help.
I am building at d3survivor.com if you need to see.