Well...we do believe that we'll get bodies at the second coming of Christ and the final judgement, but they'll be glorified bodies and not quite the same as our bodies. Since there will be a new heaven and a new earth, its debatable whether we'll be in the same type of heaven or not. If there's a new earth too, perhaps heaven and earth will be merged into one thus making bodies possible in heaven. I'm not quite sure how the whole body thing works, given that heaven is more of a spiritual realm than a physical one.