I see ChileRelleno is on this thread. You'll get some good ideas from him.
$2.99 is a great price for beef, so that's the good news. In the past, I've marinated top round in an acid with oil, like balsamic vinegar and EVOO, along with spices. Then I braised it with beef stock, onions, garlic, carrots, etc, until tender. It isn't my favorite cut of meat to do like that, but the acid in the marinade breaks it down nicely.
You could marinate it in Worcestershire sauce, soy or teriyaki sauce, then cube it and use it for kabobs like P4B said. Just grill them to rare to medium rare.
You could smoke them for a while, then cube them and make a beef stew. Once again, not my favorite cut to do that with, but it works. Just a different type of braising.
I have a feeling Chili is typing the same time as me. Lets see what he says.