Customizing my Template

I have changed the look of this blog by adding a new template. I have chosen this dark gray look with 3 columns for better use of space, and the wider format is much better than my earlier template (tic-tac) which looked as follows:


I also tried another one from the blogger.com's own selection, I liked this color:

But as you can see it isn't wide enough, so I thought to add this current dark gray one with 3 columns to be able to put more content on the right-hand side of the page.

I found my current template from BTemplates' site, they have a large collection of nice looking templates grouped into categories.