Also try Teh Tarik if you can. It's tea prepared in a local way. Tastes good and entertaining to watch! You might need it after Singapore Slings to make your way back to the airport
Also Indochine is not the only restaurant/bar on that side of Boat Quay anymore I discovered when I was there last weekend. But it's much larger and on the side of the Asian Civilizations Museum, still can't miss it.