pizza on the grill?

A friend of ours writes a great cooking blog "the cookbook chronicles" (see link to her blog on the left) and I just saw that she has a post on grilled pizzas.  I have never grilled a pizza, but when it is laid out step by step like this, I can't wait to try!  I think this would be a really fun thing to do with friends and you can all bring your own toppings etc.  I would never have thought to flip the dough over after cooking for 2-3 minutes before adding the toppings--but that ensures it is all cooked, I guess.  Seriously, I can't wait to try this.  If any one else tries it or has tried it and has a better way, let me know.  I figured I would use Em and Mel's famous pizza dough recipe, maybe with whole wheat flour.  The trick will be making decisions about the toppings!