Drupal simple own design/theme

After playing a while with adapting the Acquia Marina theme to something I like quite good,
I want to learn to make my own theme from scratch with Drupal...

I'm checking out: http://drupal.org/node/313510 gives a nice and very easy introduction to build your own theme very fast.

The main change I added: I want my slogan and site title, adding some simple lines.

The code so far: http://github.com/henning/henningbonbon

That's about it, with a little time I have my site exactly as it is today (the design needs a rework, and will get it soon) implemented and therefore editable with drupal.

I'll got ahead now, trying to make it even more "drupalish" now - as it's stil a bit ugly structured...