Actually, i got annoyed with the old theme where the main section is not wide enough to be comfortable with. Especially when the blog post is long.
So, I decided to google for some new blogger theme and decided to pick this : http://bloggertemplates.itmag.org/2007/11/blogger-template-underground.html. After some hack around and tweaking to my taste, the result is what you see now.
Comments whether this theme better/not than the previous theme are appreciated.