Getting started with wordpress

Hello everyone =]

I have been dead-set on starting an informative blog about both photography and travel. I was going to use either blogger or a site builder platform with a very basic blog feature, but then decided to think Long Term: so I chose WordPress – self hosted. My only limitation is my lack of knowledge of HTML and CSS (I know the very basic functions) which is why I need help.

I want my site: Globe Glimpser to contain 3 different blogs, none of which are on the home page: they will be a general site blog, my photographic articles and my travel articles. Is this achievable and if so, do I need to change something with my host or can I achieve this in my Admin Panel (possibly using a theme)

I’m sorry if I have been a bit general: I am very new to this =]