I have started a Quick Reference for my favorite shortcut keys for Sublime 2.
I need to summarize the shortcut keys, since many have two modifiers and I find it hard to remember.
For example, this is useful, but I can't always recall the two modifier keys:
Ctrl + Cmd + Up/Down | Move line Up/Down
I added a third column (TIPS) to help explain how the shortcut key can be used.
|Ctrl + Space Opens completions list,Enter or Tab to select | Optionally, press Ctrl+spacebar again to select next entry|
It's a work in progress, here is what I have so far:
I'll keep working on it, with my favorite shortcut keys near the top.
Gist Screenshot here.