The rollovers are yuck Try maybe a dark orange for the hover colour?

The advertising in the header overwhelms the page, people will not be able to associate the actual name of your business/site with so much clutter in your header.

The green navigation on the right is all wrong colourwise, it should be orange or blue to go with the colour scheme you already have in place.

Put a brighter hover effect on the text navigation at the top.

Your logo is neat but the writing below it is illegible, get rid of it or make it stand out. Right now it is doing nothing other than making your site look unprofessional.