I have tested and reviewed the theme that you created for your blog and think that it is very good. If you want to improve it, I have two recommendations:
1. Add an HTML link tag to allow web browsers to automatically discover the RSS feed. It would be a very useful feature. Take a look at http://www.rsswiz.com/rss-feed-autodiscovery to see how to do it.
2. The technique that you are using to bring the text outside of the screen (text-indent: -9999px) in the CSS for the logo (#header h1 a) doesn't work on all platforms. On my PDA the text still appears, conflicts with the logo image and doesn't look good.