Looks good! I'm a huge fan of grunge, so I really like this WordPress theme from
www.xhtmlvalid.com/. Great find!
The only thing I would change is maybe make the text larger - might be a little hard to read for some. And a little line spacing wouldn't hurt either.
One thing, themes should be both X/HTML
and CSS valid - not either or.
Good point to mention because most people don't even think of this.
Good job!