Making a Wordpress Theme your own

Does anyone know of any good sites or tutorials on this subject. I don’t want to use a template or anyone else’s theme or CSS style. Any thoughts?

Take a look at:
Urban Giraffe
How to design your own wp theme
Blank wp Theme
Four blank wp themes

And for completeness:
How to write a wp plugin

Nothing about templating in there but if you get that far give me a shout and help then.