For your ad link unit, try using a light grey background behind it (make sure it aligns with your header). You can add in another ad unit in your content area for better CTR.
8everything aka "best reviews in town" is right, listen to her advice. You couldn't get a better review .
I found your link unit so much squeezed that I as a user will not click on it. Your leftnav is pretty much empty - make use of it my friend. Throw in some ads. The large banner graphic - I never like those - you might want to think about placing it some where else.
Isn't the regulation 3 adsense units per page? I might be wrong about this, but if it is, then you are violating terms since you have 5? I don't know. Someone please correct me if I'm wrong.
"Google AdSense program policies allow you to place up to three ad units and one link unit on any page." I think it`s ok, i have 3 ad units, 1 link unit and referrals.