Good clean site design. I like it.
You need to work upon the following points, though :
1. Place your CSS rules in an external .css file. Helps decrease the page load times.
2. If possible, convert your design to a table-less layout
(using div/span/ul/li etc. with the help of css)
3. Now is the right time to get a professional logo for the site's header.
(and also a similar favicon --
not much important)
4. Capitalize the first letter of each word in your top navigation menu.
(everything in small caps looks a bit odd)
5. SEO :
- All your pages have the same string of text as meta description.
Put customized meta descriptions on each page of your site.
- The meta keywords tag wasn't found in any of your pages.
(though it's of not much importance)
6. Place some snippets of your customer testimonials right on your homepage.