I don't see a reason to change the header. It's for a business blog so just follow the K.I.S.S guidelines.
Thanks to all of you Any way, I want to get a domain name for it and host it out of blogger... so I am going to change the header with my new template. What is exactly the K.I.S.S guidelines? not sure if I know then?!
Thanks.... as the content is the one going to be transfer to my new host that's great we'll change the header anyway.