I didn't see this until I got the second reply. Sorry.
The theory of evolution is really many theories. Darwin's original book (on evolution) was "On the Origin of Species". It was concerned with how one species arose from another. It does not deal with the origin of life. Mainstream evolutionist restrict themselves in the same way and have come up with overwhelming evidence that some form of natural selection and sexual selection drives speciation.
The origin of life on Earth is being approached from two directions. If you consider that all matter on earth is made of protons, neutrons and electrons, then everything is just the same stuff but arranged differently. In other words, life is just another arrangement of nonlife. Scientist on the chemical side of the life/nonlife border have created molecules that resemble viruses. Viruses are like a tiny genome without a cell to reproduce it. On the Biology side of the devide, geneticists have created new organisms (my favorite being a tomato that can survive freezing temperatures by splicing a gene from an arctic fish.) Evolution theory has demonstrated that complex organisms have evolved from simple one cell organisms, including us.
The space left for creationism is the very narrow one between viruses and single cell organisms. That space will close in the next decade.