Well, here's a good marinade that I use often and you might like it...
sea salt
freshly ground black pepper
chopped fresh rosemary leaves
minced garlic
Lawry’s Seasoning salt
EVOO – Extra Virgin Olive Oil
Balsamic Vinegar
Rub it all in well and let sit for 2-4 hours
Throw it on the grill until Med/Med rare
Eat & enjoy
*I’d use nothing less than a prime cut of Top Round, Rump, Sirloin, or Tenderloin
Also I don't like to overdo the meat or the marinade as I like to taste the BEEF overall else
EDIT: If you're REALLY lazy just throw it in a bowl with Italian Dressing for 2-4 hours and toss on the grill :P