I keep playing with the regular templates in order to find out if they can fit for the blog. Reader Gerald left a comment and recommended taking a stretched template with a header picture. Stretch in this respect means that the width of the blog is adapted to the size of your browser window. That seems like a fine idea, especially since all commenters on the fixed width example I showed previously complained the blog got too narrow.
So take a look here and let me know what you think. And if any of you have some idea how I can make the header picture to stretch as well, that would be great.