I don't like the sidebar, there should be space between each heading if you know what I mean. Not liking the wood...I mean it's cool looking I guess but it's just an old style I don't like anymore. Just a personal taste.
I agree, there needs to be a space. I don't mind the wood thing, its more of a personal preference. I think you should have your logo link back to the home page.
cool. that wood looks like the woodgrain in my car hehe. I think you need to turn on your permalinks for better seo. I have a great little article showing you how here.
Another vote for a more prominent logo in the header. Another thing I don't like is the dark background color of the post titles. Apart from that it is a decent blog.
Honesty, i don't like your theme. It's very bored...but, i am still like your content anyway.. Keep succes!