The best source of Chinese Dim Sum in the OC inarguably comes from the Cerritos area. That's not practical if you live in South County. Irvine has a two excellent locations for Dim Sum, but if you want the real stuff, head over to China Garden on Jeffrey and Walnut. You may have to wait an hour or more if you arrive at peak times, but the wait is worth it. Carts filled with platefuls of dumplings and rolls zigzag between the customer-filled tables, and waiters carry trays right out of the kitchen to add to the mouth-watering mix. Unless you flag down the waiters and trays, you're likely to miss out on the goodies. The place is quite noisy; but that's in the spirit of celebration and Chinese good eats.