I love your blog. You made a good decision to move it to a self-hosted WordPress platform.
The look is professional enough. The advertisements are non-intrusive, and that's an excellent thing. The fonts and color schemes make it easy to read your content, and draws attention to the inmportant stuff.
I would only suggest that make the Archives as a cascade, so that readers can get to the article they want in a single click. Also, increase the width of the Archives widget.
Other than that, you have an excellent blog!
Review mine if you have the time. http://andychills.blogspot.com