My buddies and I would like to do a "taco crawl" and I am thinking Oak Cliff / Jefferson area. But we are open to any suggestions where there is a somewhat close concentration. Could be stand up places, could be sit down, but we would like to visit both. And it doesn't have to be just tacos -- these guys love home cooked Mexican food, period. Beer and and occasional shot of tequila are also a must. Anyone have any recommendations ?