Hi sownseeds,
We had a dutch oven throwdown and several of us did the charcoal briquettes cooking. Look in the Throwdown forum for that thread. THere's also a CI thread.
One of my favorite "recipes" is to set the dutch oven on the bbq grill, get it HOT and then brown up a whole chicken or a prime rib roast, turn down the heat and let the meat just cook away until done. The tall sides radiate the heat all around the meat and makes a really nice cook.