Cooking Salmon on the barbecue?

I bought a filet of salmon at the store (on sale!). I've never really cooked with salmon before but the grill is already hot so I figure I'll throw it on. I need something to season or dress it with though. I have fresh garlic, fresh basil, or some mangos, a lemon, fresh rosemary. Anything come to mind with those ingredients? I could run to the store if I needed. Thanks!