I also liked the idea on Pinch My Salt about using some fresh herbs & garlic to marinate the chicken. I didn't have time to marinate and I didn't want the added oil, but I did have tons of fresh herbs in my garden. So here's what I did:
The Best Chicken Rub Ever
1 T fresh rosemary
4 fresh (not dried) garlic cloves
1 T fresh parsley
1 T fresh thyme
Put all ingredients in a small food chopper and blend until chopped well. Cover the underside of chicken with about half of the rub. Turn the chicken over, and slide your fingers under the skin to distribute the other half of the rub between the skin and the meat. Throw it on the grill over medium-low heat, grill for 20-25 minutes, flipping sides in the middle, and voila!
Enjoy!