What you've got now w/ the light and shadow map is pretty much an AO map, or so it looks. Try baking out w/ a 'Complete Map' w/ your current light setup. You should exactly what you see in your scene but on your texture map. Good luck. -Tyler
There was a post about this before. You could either just get used to pressing Q,W or something instead, or make a small script that does that and assign it to the W key.