Mmmmm, all of the above. Definitely use either a metal spoon or even a plastic spreader/spatula for stirring - you'll thank us come washing up time, getting melted chocolate off a wooden spoon is a pain in the butt.

You can also melt chocolate in the microwave - low power and very slowly, stirring every 10-15 seconds, once the majority is melted and you've only got a few lumps the rest should melt on it's own while you stir.