For your first day, you can get to Tai O Fishing Village from Nging Ping. If you are interested in shopping, you can get to Citygate Outlets, just next to Tung Chung MTR Station, nearby Nging Ping 360 cable Station.
The second Day, you can see Repulse Bay on the way to Stanley market. Back to Central by bus from Stanley then, see the Victoria Peak. See Symphony of Light at night on ferry boat cross Victoria Habor.
For food, I think Tsim Sha Tsui, Causeway Bay, Wanchai are good places. Temple street in Yau Ma Tei is nice. There are night market and food. There is a food zone called SOHO in Central, food is more expensive there. Shopping at Mongkok. The Lady's Street is there.

As to hotel, how about Dorsett Seaview Hong Kong?