I've tried to make the markup XHTML compliant, however the component I'm using as an editor (again, a quicker way of dealing with the site basics) [TinyMCE editor] doesn't always create fully compliant XHTML. I'm sure that it's been done and I just need to learn, so, in the meantime bear with me.

I believe that a XHTML compliant site shows a better understanding of HTML in general and makes an overall faster site.