blog layout changes

Hopefully regular readers will have noticed a few changes in the appearance of my blog. It's been a while since I 'studied' HTML programming, but making changes to existing code is fairly simple, especially with a bit of trial and error. I was finding it hard to write much, knowing that the blog displays in such a narrow column. I've widened the width of the main section. Please let me know if is isn't displaying correctly, due to low resolutions, for example. Also please tell me if the text is too wide to read comfortably - if so I may get really adventurous and try to format posts on two columns! A few colour changes here and there also help make my page a little more individualized.