Aligning AdSense to the centre?

I wanted to get some opinions from users of easy blog. I am an AdSense user and utilise AdSense on various parts of the website. Obviously the blog is a very important place to have your units. You may have noticed that AdSense units are offset to the left automatically, there doesn't seem to be a way to align your units to the centre. Personally, I prefer my 728 banner units to be centre aligned. I have suggested this to Mark, I just wondered what the general consensus was on what I have proposed.