http://make.wordpress.org/core/
http://make.wordpress.org/core/handbook/

The old "built" repository:
 * `svn checkout https://core.svn.wordpress.org/trunk`

The new hotness repository:
 * `svn checkout https://develop.svn.wordpress.org/trunk`

Git mirror:
 * `git clone https://github.com/WordPress/WordPress.git`

Creating a patch:
 * `svn diff > ~/12345.patch`
 * `git diff --no-prefix > ~/12345.patch`

Applying a patch:
 * `patch -p0 < ~/Downloads/12345.patch`

Basics of Trac
 * logging in with your WordPress.org username
 * finding tickets
 * custom queries
 * reports 3/4, 5/6
 * commenting (keywords - has-patch, close)
 * new ticket form
 * what makes a good bug report?

What different pieces of data might you want to include? https://gist.github.com/Shelob9/7517200 (NOT A CHECKLIST)