Convert HTML Site to WordPress Installation with embedded blog

Looking to convert an existing 10 page website hosted on a Go-Daddy windows installation to a Wordpress website on a linux server. WordPress Want the ability to have rapid changes to navigation as site grows. Like the Genesis framework example [login to view URL] style Drop down menus, navBar variable colour ability Like look and feel of [login to view URL] and want maximum flexibility to change using Wordpress. Will consider several other suggestions for theme as long as it is robust and well supported. Want ability to keep existing PR5 ranking on site through change to Wordpress. Wish to use WP blog currently embedded on site. Existing site is [login to view URL]