Custom keybindings in OS X

Since I keep forgetting how to customize keyboard navigation, here's a pointer to the documentation:
http://developer.apple.com/documentation/Cocoa/Conceptual/EventOverview/TextDefaultsBindings/chapter_9_section_2.html

And here are the bindings I'm currently using in my ~/Library/KeyBindings/DefaultKeyBinding.dict file. Basically they cause the "Home" and "End" keys on the Apple keyboard to move the cursor to the beginning and end of the current text line. Hitting these keys while holding "Shift" will also select all text covered by the move. And the page up/down keys do what you'd expect.

{
    "$\Uf729" = "moveToBeginningOfLineAndModifySelection:";
    "$\Uf72b" = "moveToEndOfLineAndModifySelection:";
    "\Uf729" = "moveToBeginningOfLine:";
    "\Uf72b" = "moveToEndOfLine:";
    "\Uf72c" = "pageUp:";
    "\Uf72d" = "pageDown:";
}