If you can (they limit downloads per day), try downloading Google’s Earth application. This is an absolutely brilliant piece of software. I suspect it uses a lot of the Google Maps technology, but as a stand-alone thin-client application it provides for a much slicker user experience.
Like me, you’ll find that time flies by when you’re checking out roads, mountains etc in your neck of the woods.
My old man makes documentaries in Africa and he is always looking for maps. They’re normally quite expensive so he’ll definitely find value in this.