It's a good fish to bbq. I like to keep it simple on the barbie- a little oil on the hot plate. A sprinkle of salt and pepper and squeeze of lemon juice as it cooks. Depending on the fillets no more that a couple of minutes each side should do it. Don't over cook it because fish keeps cooking after you take it off the heat. A side of salad and some tartare and you got yourself a nice lunch.
Enjoy.