Semiologic Reloaded is a very easy to use, clean format, Wordpress Theme for your Blog. It is, possibly, the most flexible and all embracing theme you'll find for WordPress. It's a "Premium theme" in all but name — because it's FREE to download. The Semiologic theme has been a precursor for many things in the WP world — which were then copied, ripped off, reproduced, you name it. Layout picker, skin picker, font picker, skin customizations, custom css, custom php, widget oriented, customization-safe upgrades…And You don't have to learn any HTML Code.
It happened here first. I would suggest you give this Wordpress Theme a try.
(This Blog will be moving soon to the Semiologic Wordpress Theme.)