The columns in this template fit large Adsense ads nicely - the vertical 160 x 600 in the vertical column and the large 336 x 280 large rectangular in the top sidebar. You can add the large 728 x 90 horizontal leaderboard below the Blog Header. See the demo on how to place these ads. You can have either 1, 2, or 3 columns using this template without tweaking the HTML codes.
I recommend you use an image with a size of 860 x 200 pixels for the Bloge Header. You can add links on top of the Blog Header as a menubar, or a linkbar.
As usual with all my templates, you can change the colors of all elements using the Settings panel only, without tweaking the CSS codes.
Do most people prefer wide column sidebars or narrower ones? Which one looks better, or more practical - a wide blog or a narrow blog?