Is there a file stored on my computer that contains all my keymap settings that I can copy and paste from one computer to another?
game.prefs file is what you're looking for and you can see the file from the drop down box in the top left of the client iirc
ah, ok thanks... i'm guessing this game prefs file has more than just keymaps then?
It does, has all your game option settings in it if I'm not mistaken. I think your templates are in it as well.