I am planning a 7-10 day trip to Mexico in late August and would love to hear where you think I should go to experience the best or most interesting local culinary offerings. Places that have been suggested to me so far: Mexico City (a day or two, as a cultural stop and jumping off point); Mazatlan; Oaxaca; Pueble/Tlaxcala; Tepoztlan; I also saw a chain on CHOW on Hermosillo that made me want to go. Given the short trip, I imagine I wouldn't want to make more than three stops, and might prefer two if there are areas that will keep my stomach thrilled for more than a few days. Thanks!!