Place fish in a shallow dish. In a small bowl, combine next 6 ingredients (garlic through black pepper).
Rub mixture into both sides of fillets then cover and marinate for 30 minutes. Preheat grill to MEDIUM. Lightly oil grill grate.
Grill fillets over indirect heat for 5 to 8 minutes, turning once, until fish flakes easily when tested with a fork. Watch carefully to prevent burning! Serve over brown rice, top with capers and enjoy!