If you're interested in the equivalent in experiential, as
opposed to intellectual terms, Buddhism may be for
you. Its endpoint is sometimes characterised as "The
Void". On the other hand, I've also seen it described
as "neither something nor nothing", or words to that
effect.
And, despite my division between intellectual and
experiential, I do believe there's an important
connection between these -- more, in fact, I think
the nothing you're talking about, and the endpoint
of Buddhism, are the same, if seen from different
points of view.
Fascinating stuff, though, eh? :-)
Robin