Almost - I'm not here to convince you of "God", but to share my personal thoughts, which unfortunately somewhat conflict between what I "hope" and what I believe to be "true".
I'm also agnostic. If I were to look for "God", the Christian God would be the last one in line. The God described in the bible goes against every grain in me of what I would imagine the creator to be. The bible (IMO) is just man's attempt to explain "God" and control humans. Like any other religion. For me, religion fails miserably at any level of drawing people to God. It serves some purposes, though, and I don't judge those that need religion to structure their spirituality.
For me, the "creator" is simply the life-force in us. The life-force that grows a seed to a tree, a baby, animals, etc. I don't know whether this force has personality, or is just a power that has always existed in the universe. Its this unknown aspect of life that I feel motivates humans to worship and attempt to define the source of life.
I also believe in evolution.
There are some on this board that are very spiritual - James Thomas always strikes a cord in me when he posts. If "God" exists, then I believe things are exactly the way they are suppose to be. I don't believe the Creator made mistakes (eg. allowing imperfection to arise in humans that we need "saving" from). I also don't believe the Creator discriminates between indivduals of different faiths (Muslims are right, Christians are wrong).
The major part of me believes death is the end... but a small part of me hopes that we "recycle". That with any natural cycle (water, air, etc) that our life-force continues on.
I've accepted that none of us "know". We find a "comfort zone" of beliefs to aid us through this life. I find spirituality in human nature (by-and-large). The disaster in S. East Asia is horrendous, yet to see the human compassion and love expressed by those that give aid to the survivors is a source of comfort to me. To see humans assist one another. In your example of a neighbor slitting your throat, you may be able to call 911, and have medical attention, or if you died, a justice system would work on punishing your killer. All humans. All human spirit and justice and compassion.