A really fantastic marinade for grilled chicken:
1 part soy sauce
1 part Dr. Pepper (I've heard Coke works OK, too)
add ginger, garlic, some orange slices
Put in a bag with chicken parts in a fridge for several hours (the longer the better).
grill the chicker, brushing on extra marinate as necessary.
sooooo tasty. Easy as hell, too.