While working to customize a bit my blog (and you can easily see I'm not a graphic designer! ) I struggled trying to understand and sort out the tangle of CSS styles I can override to change how these pages look (at this is still "work in progress").
Luckily in our internal blogger discussion list someone (don't remember exactly who, sorry...) suggested to use CSSVista, a cool tool which allows you to edit your CSS styles and have a "live" preview of what the results are. If you use this in combination with the IE Developer Toolbar, which allows you to easily inspect the DOM in your page and find which CSS style is applied to every element (among many other things you can discover with the toolbar) and with some experience with CSS editing, it should not be that hard to restyle your page.
The only problem left is how it will look like at the end... (I definitely need some graphic advices...)
Cheers
The link to CSSVista posted above is broken - the correct link is http://litmusapp.com/labs
Yep, I guess they moved to another domain... Thanks Dave (updated also the link in the post) :-)