I have bought the Thesis WordPress Theme today, it is currently version 1.7. I am thinking to use it for my various upcoming projects. So just bite the bullet and spend hundred over dollar on the developer license.
Have been playing with it for the past hour. Much powerful than I thought! Looks great. I might eventually move most my site to it. One step at a time, yap 😛
Thesis is a premiun WordPress Theme that can be found at diythemes.com