As an Atheist, I feel nothing about dying. While I'd prefer it to hold off for as long as possible (I've still got some TV series to finish!). When it happens, it happens. No fear, no regrets.

I like Mark Twain's take on the matter:

I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it. - Mark Twain