I recomend Legends Seafood Restaurant for their dim sum at lunch time. It is cheap and good.
Legend Seafood Restaurant 100 Beretania St Honolulu, HI 96813 808 532 1868
Two locations: 100 N. Beretania St. 532-1868. Breakfast and lunch: 10:30 a.m.-2 p.m. Monday-Friday, 8 a.m.-2 p.m. Saturday- Sunday; dinner: 5:30-9:30 p.m. daily. Also, Waikiki Trade Center, 2255 Kuhio Ave. 926-8999. Breakfast and lunch: 10:30 a.m.-2 p.m. daily; dinner: 5:30-9 p.m. daily.
Due to a large Chinese population, the food in Chinatown restaurants is both authentic and delicious. This Chinatown restaurant is one of the best Dim Sum places in the islands. You can feast on all manner of seafood and meat dishes at reasonable prices. A recommendation for dinner: Seafood with Shiitake Mushrooms and Scallops. http://onokinegrindz.typepad.com/ono_kine_grindz/2005/09/legend_seafood_.html