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Thanks All.

WPPro.org was built using Blueprint CSS Framework, the CSS tool that I have fallen in love with. What this allows me to do is include unique XHTML tags within a post to give it a different feel and look. With this set up, I could also change the looks of the site itself, without breaking any post customization. Also, the posts are not styled by in line CSS to derive the various post styles, but instead the CSS is all localized and detached from the Blueprint CSS.

Case in point is this very post; the text will float left divided by a border followed by two screen shots, one of the Gaia theme and the other of this site.

Gaia is based on a TextPattern template that was build around a grid too, but not Blueprint. But that should not stop you from using the theme and customizing it to fit your needs. As a matter of fact, this theme has built-in options to do just that for users of all level. You can move the content to float to the left (like WPPro.org) or center, change the background image and much more without learning to code. Do visit the theme page, demo, download and use away.