I tend to go with just good old salt and pepper, but you can be like Remy the Rat and get fancy with the spices.  Try making a dry rub out of these herbs: 1 teaspoon black pepper, 1 teaspoon sea salt, 1 teaspoon dried basil, 1 teaspoon dried thyme, and 2 teaspoons ground paprika. You can also use fresh rosemary to good effect.  Just roughly chop two sprigs and sprinkle them on the Rump Roast with salt and pepper.