Most of these spices can be found at an Indian or middle eastern market; hopefully there is one near you. The best way to grind those spices is with a coffee grinder. If you don't have one of those handy, using a blender set on "liquify" works pretty well too. I have tried grinding a batch of garam masala with a mortar and pestle, and i had to give up and resort to a blender because it would have taken me hours otherwise.