Chengdu 23 in serves some awesome Sichuan-style food, food which I eat several times a month. I've mentioned the place here. In addition to a regular menu, they offer dim sum service on Sundays (maybe Saturday?). We recently stopped in for dim sum on the way to the new Wayne Corrado's, and were really happy with the meal.
You'll essentially be ordering off a menu, but they do have carts that roam around with tasty looking dishes that you'll have a hard time refusing. The dishes range from 3 to 5 dollars, give or take.
Spicy wonton is available during dim sum. These are not quite as good as Chengdu 1's version, but they are certainly more garlicky. Crazy garlicky.
Be prepared to get messy. You'll be sucking the meat off of the cartilage and bone with your fingers, and then you'll be sucking the awesome porky broth off of those fingers.