Where do we start;
First off, please note this is constructive criticism, I've a lot of respect for someone willing to have a go themselves, I intend no insult in the following;
First mistake is the colours, I wouldn't use purple for a base in the first place, much less multiple shades of it, I'd suggest looking here:
http://colorschemedesigner.com/
Second is the layout and the use of tables - now, there isn't much shame in using tables for layout for your first attempt, but if you're going to learn something, some may prefer to learn the correct way.
In terms of actual layout the border between the top two cells needs to go and get the AA logo in there somewhere, Navigation needs to be consistent (different text is different sizes etc). It also needs to contrast from the header. The next row is pointless, and that information could easily be included in the header.
Three column layouts don't really work for a small site IMO, I'd be inclined to have all main site navigation at the top, like you have and find other places to put external links (a links page, or in context somewhere). Also, you need to avoid "writing" in the navigation bars (Contact Mark Walsh Txt, or Ring) - you already have the phone number at the top. For the rest of the links on the left, if you absolutely must keep them, again, make them consistent and contrast to the rest.
Beyond that, ditch the font and use something like Arial or Helvetica, these are much cleaner and work with just about anything.
You also need to use more padding on content areas and the like.