Custom shortcut

I'm looking for a method of adding a custom shortcut in Fedora (17). /g/ was no help, and seemed to think I don't know how to use google, but the only things I have managed to find is 1) A method of doing it for commands that are already extant, 2) A method of doing it on Ubuntu, or 3) http://pnmyers.blogspot.co.uk/2012/05/fedora-17-no-more-launch-terminal.html

Unfortunately, I have absolutely no idea what the code in 3 means, or what to do with it. All I'm trying to do is have something like ctrl + t to open terminal, ctrl + f to open firefox, etc.

>>6
if you are not on gnome you must be in either kde or xfce, google how to set keyboard shortcuts on those window managers

openbox's keybindings won't be listened to if your session is using a different wm.