This is also something to think about:

Is There Life After Death? An Emminent International Cardiologist Believes He Can PROVE IT! | ClickPress
I think we can learn a lot about death by looking at near death experiences

Also, what do you guys think of this argument?

"If everything in our world is made up of energy, matter, ideas, etc, then consciousness itself must be energy. While in the normal waking state, consciousness may be present on the physical plane, but in other states (dreaming, meditation, etc)consciousness exists there as well, proving it isn't just connected to physical everyday reality. So we when die, if consciousness continues to be energy, and therefore can never "disappear", then in death it is only freed from our bodies, moving onto another plane."