redesign a Website and logo

I need to update my website and remove some data. In addition, I will like to change slightly my logo to a more clean and modern look. Regarding my website, this is because I am entering a new category of service and therefore and I need to just give a new slight new look to it together with a better logo to match it. Furthermore, I would like to be able to update this website myself in an easy manner. Any suggestions of how this can be done? My website - [login to view URL]