Overall, you have a really beautiful site!
A couple of things:
When I look at your site, the first thing I see isn't your content - it's the lime green text links.

Would you consider using a more subtle color? You have a lot of other colors of text, too. Maybe choose only one or two, and use "bold" here and there for emphasis?
I looked at your site in both FF and IE - I noticed that the vertical line that separates the right and left columns is visible only in IE.

In FF, the line isn't there, and the two columns are pushed almost together, which then also crowds the text on the right column. You might want to look into that. Aren't those browser discrepancies annoying?
