Here are 5 reasons why not to be afraid of Death..
(1) If you die and no God/Gods exist, you simply no longer exist. It would be like sleeping. You wouldn't care anymore, so don't even try to worry about it.
(2) If there is a God/Gods, they are likely merciful and good. They aren't going to send you to Hell because of stupid things you've done in your life time. They are probably beyond what we know is right and wrong. So enjoy an after-life of free MMORPGS on the best computers with NO lag or downtime, and you can sit there for 1,000 years and level your characters, because it is heaven!!
(3) If there is a God/Gods and they punish us, well, we are basically screwed. But atleast we will all be in the same boat. I just hope I don't get punished too badly. ;P
(4) If we repeat our same lives over and over again, no point in worrying the same things thousands of times.
(5) If we are reincarnated, who cares? We won't remember it.
So don't be afraid of Death. Enjoy your life and don't worry.