Question : CURRENT and COMPLETE WordPress 2.7 plugin writing tutorial?

I am writing a WordPress plugin and am looking for tutorials or guidelines on how to do it correctly for version 2.7 and beyond. Since there are changes coming in the way plugins need to be written, I want to learn how to do the the right way from the beginning. The problem is, I can't find any current, complete tutorials or reference... even the WordPress Codex is woefully incomplete when it comes to settings. The following are all empty articles:

add_settings_section() - http://codex.wordpress.org/index.php?title=Function_Reference/add_settings_section

add_settings_field() - http://codex.wordpress.org/index.php?title=Function_Reference/add_settings_field

register_setting() - http://codex.wordpress.org/index.php?title=Function_Reference/register_setting

unregister_setting() - http://codex.wordpress.org/index.php?title=Function_Reference/unregister_setting

This should be an easy 500 points for someone who is familiar with this. Hopefully soon I will be familiar with it too!

Answer : CURRENT and COMPLETE WordPress 2.7 plugin writing tutorial?

I know that the above was kinda older but it will still serve as a basis. There was actually at one point a plugin creater plugin...but it is only compatible to WP 2.5. Still, it may help too.

http://wordpress.org/extend/plugins/wordpress-plugin-framework/

Also this guide you might find helpful also:
http://www.guidesforge.com/how-to/wordpress-how-to/developing-your-first-wordpress-plugin-for-wordpress-27-a-step-by-step-guide