For your nav, I would use the same grey that you used in your logo, and adjust your blues to all match. I would replace the orange highlights with the green you used on your buttons, to keep it down to two main colors. Overall I think it looks really good and inviting.

I am no designer,just a normal user and after seeing your website my first impression is this theme is not unique and has been taken from somewhere.Probably because of the

web_design_Wakefield_images/web_design_Wakefield.jpg

I am sorry for saying this to you my friend but I have to say I do not like to see your sort of posting on forums, I know quite a lot of forum owners hate it too, and some would ban that type of stuff I think.
bye
David