A post... After so long

Its been long since I posted. Well I have more or less stopped writing, but I do visit my journel everyday.
So I thought, what the heck, I will start posting photographs.. Since I do a lot of photography
Today I will post 1 pic. Click for big pic

Suggest me a free CMS

Drupal or Joomla!. Or something alse altogether.
No wordpress please. Sure there are a hundreds of sites talking about how wordpress can be a cms, but cms it is not its a blog. I am looking for something
1. Flexible
2. Does books(eg drupal has book module)
3. Nice themes
4. Upgrade path is no painful(drupal 4.6 was horrendous)