- Swap Left CapsLock with Ctrl
System Settings > Keyboard > Layout Settings > Options... > Ctrl Key position > Caps Lock as Ctrl
- GNOME Keybindings
use gsettings or gconftool-2 http://superuser.com/questions/345452/how-do-i-change-my-gnome-ubuntu-key-binding-work-as-emacs/348609#348609