Try Lantau Island...world's largest outdoor bronze Buddha and a great vegetarian lunch served by the monks at the monastery! Great experience. Take a ferry to Lantau then hop on a bus to the monastery. Also, if you want to make a day of it...take another bus to the other side of the island to Tai-O village. You will feel like you've gone back in time! (check out the HK Tourist Association - I'm sure there is info at the airport or your hotel) Another interesting thing to do for an afternoon is take a tram ride from one side of HK Island to the other. You can go from Happy Valley where the racecourse is to Western District which is relatively undeveloped compared to Central. Definitely head up to the Peak at night on the Peak Tram...and ride the Star Ferry from Kowloon to HK Island. You'll understand then why Hong Kong means "Fragrant Harbour"

As far as shopping goes, head to Stanley Market. Or if you are a high end shopper just walk through Central!!!!
Another good tourist spot is Aberdeen - you may have heard of the famous floating restaurants. Give it a try!
Hong Kong is truly an experience for all of your senses. Enjoy!
Let us know how your trip was when you return...