I am building a news and reviews site.

Here is what I am going for. And I have a picture of this if anyone would like to see the PDF let me know.

I have 3 major sections - News - Reviews - Game Trailers, for each section is a category (sorry using old joomla terms) Xbox 360, PS3, Wii, etc. etc.

I started to do a 360 category, then build the news category, then the reviews category, and finally the game trailers category but I think I would be doing that backwards any thoughts?