Mix all ingredients (except salmon steaks of course) to form a marinade. Put salmon steaks into a glass dish and pour marinade over steaks. Cover and refergerate for about 1 hour, turning a few times to evenly coat. Preheat grill to medium-high and coat with nonstick spray or rub with oil just before putting fish on grill. Cook salmon for 6-8 minutes per side until salmon flakes easily with a fork. Brush with marinade several times during cooking. Discard extra marinade. Garnish with lemon or lime slices.